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Why The Obsession With 20W50 Engine Oil? - Car Talk - NairaLife

NairaLife Forum / NairaLife / General / Car Talk / Why The Obsession With 20W50 Engine Oil? (16471 Views)

My Kazeem Said They Have Replaced Power Steering Oil With Engine Oil / Why Does My Car Engine Oil Dry Up Without Physical Leakage / What Type Of Engine Oil Do You Use In Your Car And How Much Is It? (1) (2) (3) (4)

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Why The Obsession With 20W50 Engine Oil? by eeeeeee: 2:12am On Apr 07, 2016
Virtually every mechanic recommends the use of 20w50 esp Mobil XHP.

This is despite the recommended 5W30/5w20 for most millennium cars (toyotas).

They say the reason is that once the mileage is above 100,000 it is better to use the heavier 20W50.

Please is this true?

What oil should be used in a 1999 toyota camry with 120k,2006 toyota sienna with 100k and 2006 toyota corolla with 90k miles.

6 Likes 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by IamRespected: 2:29am On Apr 07, 2016
sienna, chelseabmw oya come oo

1 Like 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by yimikaa: 3:23pm On Apr 07, 2016
IamRespected:
sienna, chelseabmw oya come oo

You forgot to add GAZZUZZ, kingreign adanny01

3 Likes

Re: Why The Obsession With 20W50 Engine Oil? by haykay2005: 7:42am On Apr 08, 2016
.
Re: Why The Obsession With 20W50 Engine Oil? by Nobody: 1:37pm On Apr 08, 2016
One should always stick to recommended oil even on 'high mileage' engines, with no smoking or drying of oil.

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Akaewu: 8:52am On Apr 14, 2016
Kazeem knowledge
Re: Why The Obsession With 20W50 Engine Oil? by Nobody: 12:55pm On Apr 14, 2016
Theres no obsession with 20w50 oil in naija, alot of people I know use other grade like 5w40, 0w10 etc, it all depends on drivers knowledge abut manufacturers requirements for engine oils and mileage of the vehicle's engine.

3 Likes 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by xcitedjay(m): 9:43pm On Apr 14, 2016
Personally, I wouldn't advice anybody staying in USA to use 5w20/30/40 engine oil in their car. My car's engine knocked after using one of those oil and this is my second engine knocking experience.

For one it's too thin and doesn't effectively absorb the heat built up in the engine well enough, add that to our already hot climate.

In both cars, I was driving at a sustained speed of 180km/hr when I suddenly experienced a knocking sound inside the engine. Bearings were found to be worn when the engines were opened. Both happened roughly about a month after servicing.

If you drive mostly within the city and don't speed much then you can go for the 5w20/30/40 engine oil else you might just be looking for trouble.

Car 1 - Honda Civic 2004 EX(4 Cylinders) - Total 9000 (5w40)
Car 2 - Honda Accord 2008 V6 EX-L - Mobil 1 (5w30)

15 Likes 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by austin4real(m): 8:55am On Apr 15, 2016
I have a question concerning this oil stuff, when I just freshly got my Nissan primera p11-144, I used mainly 20w-50, but I noticed whenever I'm going uphill the engine gives a crackling sound, I later moved to using 10w-40 grade of oil which reduced the sound and increased fuel economy a bit, when I went for my last service, I couldn't find the 10w-40 variant, as they only had 5w-20 which I decided to settle for. The engine runs very smoothly lately, the crackling sound has completely disappeared. My question now is that: is the 5w-20 too light for my engine, or can I continue using it Someone cited above that his head gasket blew off at high speed because of the light oil he used, would that also happen to my vehicle if I travel at really high speed... Those are my question

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by autotrader2: 8:27am On Apr 30, 2016
austin4real:
I have a question concerning this oil stuff, when I just freshly got my Nissan primera p11-144, I used mainly 20w-50, but I noticed whenever I'm going uphill the engine gives a crackling sound, I later moved to using 10w-40 grade of oil which reduced the sound and increased fuel economy a bit, when I went for my last service, I couldn't find the 10w-40 variant, as they only had 5w-20 which I decided to settle for. The engine runs very smoothly lately, the crackling sound has completely disappeared. My question now is that: is the 5w-20 too light for my engine, or can I continue using it Someone cited above that his head gasket blew off at high speed because of the light oil he used, would that also happen to my vehicle if I travel at really high speed... Those are my question

After using the 5w20 the engines runs very smoothly now. You have answered your question then.

8 Likes 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by paix(m): 9:40am On Apr 30, 2016
eeeeeee:
Virtually every mechanic recommends the use of 20w50 esp Mobil XHP.

This is despite the recommended 5W30/5w20 for most millennium cars (toyotas).

They say the reason is that once the mileage is above 100,000 it is better to use the heavier 20W50.

Please is this true?

What oil should be used in a 1999 toyota camry with 120k,2006 toyota sienna with 100k and 2006 toyota corolla with 90k miles.



What oil grade did the manufacturer recommend ?

1 Like

Re: Why The Obsession With 20W50 Engine Oil? by timbs001(m): 11:46am On Apr 30, 2016
xcitedjay:
Personally, I wouldn't advice anybody staying in USA to use 5w20/30/40 engine oil in their car. My car's engine knocked after using one of those oil and this is my second engine knocking experience.

For one it's too thin and doesn't effectively absorb the heat built up in the engine well enough, add that to our already hot climate.

In both cars, I was driving at a sustained speed of 180km/hr when I suddenly experienced a knocking sound inside the engine. Bearings were found to be worn when the engines were opened. Both happened roughly about a month after servicing.

If you drive mostly within the city and don't speed much then you can go for the 5w20/30/40 engine oil else you might just be looking for trouble.

Car 1 - Honda Civic 2004 EXL(4 Cylinders) - Total 9000 (5w40)
Car 2 - Honda Accord 2008 V6 EX-L - Mobil 1 (5w30)
Does anybody have similar experience as this poster? I'll like to know.

4 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Itulah(m): 1:47am On May 02, 2016
timbs001:

Does anybody have similar experience as this poster? I'll like to know.

Yes, mine didn't knock though, but it overheat too often especially when I travel. 5W30 is not advisable in USA weather conditions.

1 Like

Re: Why The Obsession With 20W50 Engine Oil? by timbs001(m): 11:16am On May 02, 2016
Itulah:


Yes, mine didn't knock though, but it overheat too often especially when I travel. 5W30 is not advisable in USA weather conditions.
This seems to contradict what the experts in the auto section have been telling us. Personally I've been using 5w30 to service my Corolla.
GAZZUZZ, kingreign and other experts, what do you think?

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Nobody: 12:31pm On May 02, 2016
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.

41 Likes 9 Shares

Re: Why The Obsession With 20W50 Engine Oil? by timbs001(m): 12:47pm On May 02, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming img your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.
Thanks siena smiley
Re: Why The Obsession With 20W50 Engine Oil? by LeJeun3: 1:13pm On May 02, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming img your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.




Boss Siena, abeg tell them. Clients keep sounding like the right grade of oil is for my consumption!


1 Like

Re: Why The Obsession With 20W50 Engine Oil? by mejai(m): 2:31pm On May 02, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.
case closed! una don hear am, abi una still want to buy d palm oyel?(20w50).


I beliv price is also d contributing factor. typical of Nigerians, we buy a car and complain of fuelling d car. the same goes with engine oil.

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Specialist900(m): 3:34pm On May 02, 2016
Price and it been rampant in the market accounts for it. Some car owners too don't know their engines are supposed to use a particular oil grade

3 Likes

Re: Why The Obsession With 20W50 Engine Oil? by autotrader2: 8:02am On May 03, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.

Excellent post. Stop destroying your engines with cheap and unsuitable engine oils. Always buy the recommended oil for your ride

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Nobody: 8:12am On May 03, 2016
Yes the oil may not be good for modern engines, but if you drive a vehicle made between 1993- 1998 it is a practical alternative, my Jetta is over 280,000 kilometers in mileage, the recommended 5w40 doesn't last in the engine, it just too thin to stay the engine, so I opted for 20w50.

Its been 4yrs and counting vehicle still runs, oils is clean because I change it every 3 months.

Share your practical experience of how you look after your car, dont band wagon to look cool.

No matter how maintained an engine is, wear and tear is a fact that happens to all all engines, you will need to move to a slightly thicker oil to compensate, If you buy a post millennium car you definitely dont need the 20w50 oil.

17 Likes

Re: Why The Obsession With 20W50 Engine Oil? by Denc: 9:27pm On Jul 11, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.
Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.
These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry.

Those saying their engines "knocked" after using the correct oil, that's nonsense.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong.

, the recommended 5w40 doesn't last in the engine, it just too thin to stay the engine, so I opted for 20w50.
Its been 4yrs and counting vehicle still runs, oils is clean because I change it every 3 months.
Share your practical experience of how you look after your car, dont band wagon to look cool.
[/quote]

Had to comment on this topic because it something I am researching on right now

@kaeforum - I agree with you 100% and your experience/comment is supported by comments from other car users/reviews posted in other automobile forums.

@Siena - thank you for sharing.
The key word in your post is "modern engines" so yes I see your point.
However, some notes:
- the talk about engines knocking on using recommended specs does happen; I have experienced it. But factors such as genuineness of the said recommended engine oil needs to be considered. Its not easy to tell a genuine product in USA unless you manufactured it yourself OR are certain of importation process (third parties can also import junk and package it as "recommended" for same price!). Even the so-called major corporate outlets still openly sell "OBSOLETE" engine oil of category API SF/CC SG/CF
- for some users, using 20W-50 is a practical last resort because the recommended engine oil as not always readily available in USA (not just because of the cost). I have paid for and used 5W-20, 5W-30, 5W-40 (including those of API category SM and SN) and the ubiquitous 20W-50.

2 Likes

Re: Why The Obsession With 20W50 Engine Oil? by lourash(m): 7:26am On Jul 12, 2016
Nice write up as usual Oga Sienna.

I used Castrol 5w40 as against the 0W20 recommended for my car based on a friend's advice that they are within the same temperature range. I will appreciate if I can get someone to confirm what the possible effects will be negatively or positively.
Re: Why The Obsession With 20W50 Engine Oil? by Ayo8(m): 8:20am On Jul 12, 2016
Siena:
20W-50 engine oil is no good for modern engines, regardless of the mileage. It is too thick, and flow to sensitive areas like multivalve cylinders, VVT / VANOS and any other timing adjusters that rely on instant oil pressure will be impeded.

Sludge.
Damaged timing chain tensioners.
Seized timing adjusters / variators.
Poor gas mileage.
Excessive engine wear.
Premature oil pump failure.
Premature turbo bearing failure.
Clogged PCV systems.

These are just some of the results of using 20W-50 engine oil in a modern engine, which has the viscosity of honey or tar.

Some are citing USA's climate as a reason to run 20W-50 in a 2015 Toyota Camry. Rubbish! World climates are taken into account when engines are designed. What is so special about USA? Texas, Arizona, Nevada are hotter than USA will ever be, so is Dubai and tons of other countries. Run the correct oil for your engine, and stop assuming your Kazeem knows better than the engine manufacturers.

My old Audi S2 I sold with 543,000 miles on the odometer. When it was new and zero miles, the specified engine oil was 5W-30 or 10W-40. At 543,000 miles, the oil spec remained the same, I still used 5W-30.

Those saying their engines "knocked" after using the correct oil, that's nonsense. An engine that is on its last legs, with so much play in the crank main bearings, conrod bearings will run on any old rubbish.

Some unscrupulous dealers and mechanics will actually melt thick grease and fill the engine with the resultant heavy oil, to quieten a rattling and knocking engine, just to sell the car to an unsuspecting buyer. Of course this engine is dead, the moment you drain and replace the oil, it's the end. The destruction is nothing to do with using the correct engine, this was an engine that was already sounding like a bulldozer's diesel engine, that had the symptoms of crank and conrod Bering failure masked by introducing a thicker oil, which would eventually destroy even a healthy engine.

The average USA prefers to accept 20W-50 oil as good for their engines, though deep down, some are aware it's wrong. It's easier to accept the cheaper rubbish than to shell out good money for the correct synthetic oil. These users are also inherently lazy, and couldn't really be bothered to search for the right oil, or import it if they can't find it locally or nationally.

@543000miles shocked shocked... did you travel round the world in ur Audi..??

8 Likes

Re: Why The Obsession With 20W50 Engine Oil? by autotrader2: 8:48am On Jul 12, 2016
lourash:
Nice write up as usual Oga Sienna.

I used Castrol 5w40 as against the 0W20 recommended for my car based on a friend's advice that they are within the same temperature range. I will appreciate if I can get someone to confirm what the possible effects will be negatively or positively.

You should use a 5w20. That's the equivalent substitute for 0w20 if you can't find it.

1 Like

Re: Why The Obsession With 20W50 Engine Oil? by Crixie(m): 9:01am On Jul 12, 2016
I would say the quality of the oil has a Mighty role to play wether we want to believe it or not,If you buy Quality recommended oil,I don't believe you will have all these problems mentioned here.But when u buy 4-5 litres of synthetic 5w 20/30/40 and so on for #4500 n other funny amount biko suspect that oil

3 Likes 1 Share

Re: Why The Obsession With 20W50 Engine Oil? by Crixie(m): 9:11am On Jul 12, 2016
All those circled alphabets mean something,but most of us don't care about things like that

Re: Why The Obsession With 20W50 Engine Oil? by fortunejum: 9:59am On Jul 12, 2016
So which brand of 5w30 engine oil can you guys recommend for us, mostly for high mileage cars and availability of the product in USA?

1 Like

Re: Why The Obsession With 20W50 Engine Oil? by Namzy(m): 12:19pm On Jul 12, 2016
Has anyone bothered to check the temperature range at which to use 20w50? And compare to temperature range of 5w30 or 5w20? Because I understand the most important time of engine wear is at cold start up in the morning but at what temperature will 20w50 become too thick and might cause engine wear at cold startup? I know the second most important concern is build up of sludge because of more addictive used to stabilize the oil which can be rectified mostly with timely oil change. This argument has gone on for too long. Some people in the USA use different oil in summer and winter. Guaranteed you most likely get the best when using manufacturer recommended oil but a 20w50 will take a very long time to wear your engine (assuming other components are ok), and might last till the car outlives it's usefulness..... Well what do I know undecided grin

7 Likes

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