Why does Castrol 5W-20 have a warning?
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krholm...i have to ask..why would you use gc in a 1.8L honda? Why not use a thin 30 weight if so concerned about 5w20? GC killed the gas mileage in my wifes vq35 altima until i switched to synpower 5w30.
Also Silkolene 0W20 race oil has caution re inadequate oil pump capacity
http://www.silkoleneoil.com/pdf/ProR0w20.pdf
http://www.silkoleneoil.com/pdf/ProR0w20.pdf
EVERYBODY, pack your bags, were going on a Invalid Argument trip again.
You 5w20 haters really do make me laugh. You are now trying to associate 5w20s with shuttle explosions and asbestos health problems. But I guess that in the final throes of loosing the debate, one gets desperate.
Our government didn't mandate the use of 5w20s. They (EPA) set the CAFE standards, and the engineers, chemists, tribologist developed the 5w20s to help meet the CAFE standards. Further, without CAFE and emission standards, most people would still be driving carbureted vehicles with the sophistication of a '61 Chevy Bel Aire. And you'd have to wear a level 3 HazMat suit to walk around LA.
Actually the hazards of Asbestos was well known for at least 70 years. Unfortunately, there was no EPA at the time to raise consumer awareness. But what a silly analogy.
You 5w20 haters really do make me laugh. You are now trying to associate 5w20s with shuttle explosions and asbestos health problems. But I guess that in the final throes of loosing the debate, one gets desperate.
I agree...the warning is the same as Ford has where it back-spec's 5-20 for some of it's vehicles and not for others.
This is a low viscosity/low ht/hs/fuel economy grade and may not be suitable in all vehicles/all engines...hence, Castrol went ahead and made this statement right on the bottle...so where and what's the problem?
Yeah, use it only when spec'd...eg. new Honda's or Fords....or in my 94 BMW when it's -25C out. Otherwise, don't use it in a new BMW M3 or a Vette...
This is a low viscosity/low ht/hs/fuel economy grade and may not be suitable in all vehicles/all engines...hence, Castrol went ahead and made this statement right on the bottle...so where and what's the problem?
Yeah, use it only when spec'd...eg. new Honda's or Fords....or in my 94 BMW when it's -25C out. Otherwise, don't use it in a new BMW M3 or a Vette...
Very well put 427A06, BUT anyone has a right to choose what type, brand, and weight of oil they use without being ridaculed or called names like idiot or stupid. Not saying you did.
On the other hand, some keep refering to well the Civics in Europe or Australia, etc recommend thicker weight oils. That's fine, the Honda's sold in North America have their engines made in Ohio or Alabama, not Europe or Australia, so there just might be a difference. Who knows, I don't.
On the other hand, some keep refering to well the Civics in Europe or Australia, etc recommend thicker weight oils. That's fine, the Honda's sold in North America have their engines made in Ohio or Alabama, not Europe or Australia, so there just might be a difference. Who knows, I don't.
Until an engine is proofed with this oil know one is willing to stick their neck out. SOme engines make the switch to 20Wt. with no problem while others have seen a 2x-6x increase in wear.
Unfortunately Cogito, life is generally like that, and this forum isn't any more immune than others. Best you can do is educate yourself on the topic the best you can.
How true. There are the 3k OCI guys, the 10k OCI guys and the 20k OCI guys. There are the pro bypass filter guys and the anti-bypass filter guys. That is how life is. There are VERY well educated low viscosity guys and some the other way around.
I think 5W20 increases wear slightly. However, with proper oil frequency your engine will easily last 2-300k miles with this "slightly" increased wear. If I had a Ford or a Honda I would use it in a second.
If you read some of the detailed analysis of low vis oil, you will see that it actually reduces wear in some parts of the engine and slightly increases it in others.
Cogito
"think", "believe", and "know" are not interchangable words. They have distinct definitions.
If we "know" something, we will provide you the evidence/data. If we "think" something, we will tell you the reasoning and the facts on which that reasoning is based. If we "believe" something, we will just keep saying it over and over again. We may even explain that it is just personal preference (which might be the case, when the data support that conclusion).
"think", "believe", and "know" are not interchangable words. They have distinct definitions.
If we "know" something, we will provide you the evidence/data. If we "think" something, we will tell you the reasoning and the facts on which that reasoning is based. If we "believe" something, we will just keep saying it over and over again. We may even explain that it is just personal preference (which might be the case, when the data support that conclusion).
What is it about 5W20 threads lately
, they seem to bring out the worst in everyone. I will never understand why you guys can't look at the tons of 5W20 of used oil analysis and realize that the 5W20 scare holds no weight.
5w20s don't need self proclaimed experts. There are a mountain of used oil analysis, GF-4/SM tests, and research papers that support it's efficacy.
You can use a xW30 or even an xW40 in vehicles that are recommended to use 5W20, as even the makers do so outside of the US. In Japan Honda recommends several oils, 5W20 for fuel mileage, and among others a 'Gold' 5W40. On the other side of the coin since 5W20 doesn't offer the same protection as a heavier oil you risk damage when attempting to use it where it's not recommended.
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