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Old 09-16-2016, 03:12 PM   #1
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Originally Posted by JFP in PA View Post
I would not go any lighter than a 5W-40, prefering a 10W-40 in warm climates due to improved film strenghts. I would also focus on ZDDP content.

There are several brands worth looking at, in cluding Joe Gibbs, Motul, Castrol, and even some of the Shell Rotella's.
JFP, I thought the Shell Rotella Full Synthetic is just for Diesel Engines, is that correct?
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Old 09-17-2016, 01:48 PM   #2
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JFP, I thought the Shell Rotella Full Synthetic is just for Diesel Engines, is that correct?
Yes. Many diesel oils are very high temp/high shear resistant Group IV oils, with very high ZDDP levels because they do not use cats.
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Old 09-17-2016, 02:01 PM   #3
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Yes. Many diesel oils are very high temp/high shear resistant Group IV oils, with very high ZDDP levels because they do not use cats.
Sorry for sounding like an idiot, but should I use Rotella in my 986 or not? Because I thought you were recommending that I use Rotella T6 Full Synthetic 5/40W

Sorry to bug you but I am due for my next oil change and I just want to get it right.

Thank you
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Old 09-17-2016, 03:02 PM   #4
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Sorry for sounding like an idiot, but should I use Rotella in my 986 or not? Because I thought you were recommending that I use Rotella T6 Full Synthetic 5/40W

Sorry to bug you but I am due for my next oil change and I just want to get it right.

Thank you
Yes, you can use the Rotella T6. You could also use Joe Gibbs DT40, which is another excellent choice.
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Old 09-17-2016, 03:57 PM   #5
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Yes, you can use the Rotella T6. You could also use Joe Gibbs DT40, which is another excellent choice.
Thank you so much for the info

Just ordered my JG DT40 from Amazon.
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Last edited by Slate 01; 09-17-2016 at 04:11 PM.
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Old 09-17-2016, 08:16 PM   #6
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I have my supply of DT40 and NAPA Gold 1042 filter for my pre-hibernation oil change.
Found that the local NAPA Auto Parts can get the stuff for pretty much what I paid when I was in Bristol last summer.
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