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Old 06-11-2007, 11:35 AM   #25
97coupe
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1997 SC2
Default Re: Rotella T Engine Oil....

Quote:
Originally Posted by BarnOwl View Post
I've been using Rotella T 5W-40 in my Saturns for a while now. So far, the 2000 is using no oil and the '98 uses about 1/2 quart between changes. That's good enough for me but, I don't live in a cold climate either.
For what it is worth you are losing a bit of MPG potential unless it is maybe 100 plus where you are at because the 40 weight flow rate at higher temp in a small engine consumes more power shearing it. You are not gaining anything here really MPG wise even though the "5W" part may make you think so. I doubt that you will find the energy conserving rating on the API label either.

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