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Question for my fellow 3VZE guys.
Engine was recently rebuilt, and i'm currently running 4.88 gearing with 33 12.5 15's on steelies. Miles per are less than desirable at around 12-13. Do you guys think that switching to 15" Aluminum wheels in conjunction with downsizing the tires to 32 11.5 r15 would make much of a difference in the MPG? My reasoning is that they are slightly less in diameter, and would have a reduced unsprung weight due to the decreased width of the tire, and the aluminum wheel being lighter. Even a 2-3 mpg increase would be enough for me to switch.
I can't find anything on downsizing and mpg, typically its people asking about going up.
I appreciate any thoughts or advice. Thanks!