quote:
Originally posted by Doug Hillary:
Ted, perhaps some Amsoil products can't handle soot and that is why they thicken out of range!
Amsoil 15w-40 and 5w-40 worked just fine in my previous 2000 VW TDI. And Amsoil 15w-40 works just fine in my current 1991 VW 1.6D IDI with 250k miles.
You're entitled to your opinions. And there's a chance you may know more than TS on certain subjects. But you could learn to show TS a little more respect and treat him like the man he is over 20 years in the field instead of like a first year college student that's still wet behind the ears.
Now for my opinion on 505.01 oils:
VAG is mainly worried about cam lobe wear. Since a worn cam will alter the fuel injection timing. But at what cost? Does the oil protect the rest of the engine as well? Only time will tell.
VW used to offer a 10 year / 100k mile powertrain waranty. The best factory warranty of any car manufacturer at the time. But now they only offer a 5 year / 60k miles powertrain warranty. I wonder why? Lack of faith in their own cars? Greed? Who knows.
On a side note, Daimler-Chrysler is dropping the powertrain warranty for the Jeep Liberty CRD (CDI TD) for the 2006 MY. 2005 gets 7 years / 70k miles. 2006 only gets 3 years / 36k miles. And, DC says to use Mobil 1 0w-40 or M1 5w-30. Oils that are only API CF for an engine with an EGR. Why doesn't DC recommend a 5w-40 CI-4 oil, an oil that's actually designed for a diesel engine with an EGR? Or why doesn't DC import the European oil that's used like VW does? If DC wants you to use M1, why not recommend M1 Truck & SUV?
It's all about the all-mighty dollar. Car manufacturers don't care how long their car lasts, just as long as it lasts until the warranty is out. And to cut out expenditures, they're starting to reduce their factory warranties. And they don't want to take the time, or spend the money, to research different ols and see what oil should be used for the best results and longest engine life. It's really sad. New car prices are steadily going UP, while new car reliability is steadily going DOWN.