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Craig said, He changed to a
"straight" weight oil from multi viscosity for better engine
protection.
I've been wondering about that. I
just changed my oil from 50 to 15-50.
With the straight 50 I had noticeable turbo lag
(like I got to 38" about halfway through the takeoff roll).
With the 15-50 I had 38" almost
instantly. 86 dF OAT.
Maybe that's the difference between clean and
dirty oil but I doubt it.
I assume this is related to wastegate
operation somehow.
This is certainly possible due to the viscosity change if the oil temp is low. Think of it as "steering
control". <g> Living in Phoenix makes the straight weight decision
much easier.
Craig
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