Quote:
Originally Posted by sarguy01
I need to do some research for the best weight oil this thing can use for it's high mileage/MPG and what fluid to put in the trans.
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I've already done the trans oil research for you:
Use GM's Synchromesh semi-synth gear oil. DON'T use the 75w90 oil called for in the owner's manual - I believe that's a printing mistake, and here's why:
Effect of gear oil viscosity on transmission efficiency (Metroid owners take note) - Gas Savers - Fuel Efficiency Forum