Originally Posted By: FordCapriDriver
Originally Posted By: Nickdfresh
Originally Posted By: Shannow
...
but...
* CAFE was enacted in 1975
* all of the early papers which I've found that include this new synthetic 5W20 were based around economy while seeing if wear protection was maintained.
That's fine, but it goes both ways. You mentioned 10W-40 in the time of Jaws, but well into the late 1980's and even 90's, many manufacturers had statements like "5W-30 not recommended for sustained high-speed driving" or the like in their manuals. 5W-20 is just an extension of this and of course there is really no more demonstrable wear that there is with 5W-30 that anyone as ever actually discerned. We've been going to thinner and thinner oils all along and Mobil 1 WAS NOT the only 5W-20 back then (but certainly the only one I would have used).
Most sentiments of the thick oilers here are based largely on a sense of paranoia and sentiments of being a [censored] rebel for using thicker oils mandated by big brother. It seems sort of like a lot of nonsense. I could care less what you use in your cars, use SAE40 for all I care, but there really is not definitive science either way....
"The [censored] with you hippies! I'll never put 0W-20 in my Mitsubishi Mirage! Durka durrrr!!!!!
Might use 0W-20 in my car then, sure the oil pressure gauge would not move much ever but eh that's fine
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No seriously i use 20W-50 Because that is what the owner's manual recomends for hot climates and it will not hold enough oil pressure when the engine gets hot with 40 grades, and on my daily driver Peugeot i jse it to quiet down the valve tick and it also burns oil soooo... not because i think i'm cool.
Use what your owners' manual recommends and I surely would do the same. But use a synthetic 20W-50 IMHO..
