Depends whether you are in the north or south part of Texas.quote:
Originally posted by 427Z06:
Nope. We're going to beat on this dead horse until it emerges in China. Or would that be Australia? Anyone have a globe handy?
Depends whether you are in the north or south part of Texas.quote:
Originally posted by 427Z06:
Nope. We're going to beat on this dead horse until it emerges in China. Or would that be Australia? Anyone have a globe handy?
Depends on how different they are, and/or if through testing, they find any lubrication deficiencies between the two of them.quote:
Originally posted by darkdan:
What about the Jaguar's 3.0 Duratec V6.
Same engine as the Ford except for the heads.
Jaguar's recommended oil 10w30 (5w30 for cold).
Ford....5w20.
Do the heads and ECU really make that big of a difference?
Covered through fleet testing in various climates throughout N.A.quote:
Originally posted by San Diego Mac:
Instead of looking for wear under WOT steady state conditions, perhaps, other than cold start, most wear is occuring during a wide rpm range of max acceleration.
I disagree with this notion. The demand curve for motor vehicle fuel is extremely inelastic both here and in fully developed countries overseas. That means consumption is essentially unaffected for more than a week or so by price changes.quote:
Originally posted by JohnnyO:
Because we're the only place that mandates an fleet average minimum gas mileage. Other countries let high fuel taxes be the incentive.quote:
Originally posted by jtantare:
Why is 5w20/0w20 only sold and recomended in north America?
Well, think about that a little TallPaul. Governments run on revenue. In Europe you "channel" your citizens in a manner that benefits the state. You merely leave fuel taxes high and simply don't put any insentives (other than their wallets) into the mix for "consumption" ..which should not be confused with "conservation". You then have your business/government make the market conspicously void of lighter weight oils and then make them very expensive. You contour your citizens behavior to the needs of the state.quote:
Originally posted by JohnnyO:
quote:Originally posted by jtantare:
Why is 5w20/0w20 only sold and recomended in north America?
Because we're the only place that mandates an fleet average minimum gas mileage. Other countries let high fuel taxes be the incentive.
True. And if the 5w20 was really any better than thicker oils, you would think it would be used in other countries. Also, if the fuel economy benefits were more than negligible for the individual user, they would have incentive to use it in Europe to offset the high taxes. Conclusion: 5w20 ain't worth much to me or you.
On the other hand, if it does die, it'll just be resurrected again under a different title in a week or two. May as well keep all the "wailing and gnashing of teeth" together in one thread.quote:
Originally posted by andrews:
This thread needs to die.
Ford owns Jaguar. I'm pretty sure the engine engine is the same except the heads and the stuff attached to them.quote:
Originally posted by 427Z06:
Depends on how different they are, and/or if through testing, they find any lubrication deficiencies between the two of them.quote:
Originally posted by darkdan:
What about the Jaguar's 3.0 Duratec V6.
Same engine as the Ford except for the heads.
Jaguar's recommended oil 10w30 (5w30 for cold).
Ford....5w20.
Do the heads and ECU really make that big of a difference?
Seems to me, if we want to pull theories out of thin air, that one could make the argument that since the U.S. is the more litigious country, the last thing Ford would want is a class action lawsuit filed against them for forcing Americans to use inferior oil, therefore it must be sufficient for the task at hand.
Let's give it it's own forum, Thick vs. Thin. Worked to consolidate GC discussion.quote:
Originally posted by 427Z06:
On the other hand, if it does die, it'll just be resurrected again under a different title in a week or two. May as well keep all the "wailing and gnashing of teeth" together in one thread.quote:
Originally posted by andrews:
This thread needs to die.
quote:
Originally posted by Gary Allan:
You then have your business/government make the market conspicously void of lighter weight oils and then make them very expensive. You contour your citizens behavior to the needs of the state.I should hope that Europe is not so unfree that the people could not get 5w20 oil if the consumer demand were large enough and that the automakers could not specify it, were it better for the engine.
I certainly agree that it's not "better" for the engine. I think it's also not worse. It seems to me that America's junkyard "fleet" is the best evidence on the planet that oil selection and even most drain habits are completely irrelevant to engine life.quote:
Originally posted by TallPaul:
I should hope that Europe is not so unfree that the people could not get 5w20 oil if the consumer demand were large enough and that the automakers could not specify it, were it better for the engine.
If a 5W-30 shears to 5W-20, does that imply a 5W-20 will stay in grade?quote:
I just searched for a bunch of the older dino 5w30 UOAs. Seems to me that about half of them thinned out to a SAE 20 grade at 100C, some with less than 3,000 miles.
So as someone else once said, "the public has been running on essentially 5w20s dinos for almost 2 decades now...in the form of sheared back 5w30 dinos."