Quote:
Originally Posted by Thatdippedstang
I will have to try the different oil and tires when those times come around.
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Just adding more information - I switched my manual trans from Mercon to Royal Purple "Synchromax" Manual transmission fluid last July... It made no difference in fuel economy. Your rear axle probably
already has 75W-140 synthetic gear lube in it, as mine does, so that's a non-issue. The 0W-30 motor oil made a significant difference. Hopefully, tomorrow's fill-up won't take TOO big a hit from the new tires...
Quote:
Originally Posted by Thatdippedstang
The tuner that I have has given me better power and better gas mileage, as well as much better shift points and firmness, and it can also do the speedometer calibration .
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Cool. So you can switch tire sizes without additional expense to re-calibrate the speedometer. And it's nice to get more power without sacrificing fuel economy.
