Chrysler Aspen AWD differential fluid
Just had all of my fluids changed at the dealer in my 2008 Aspen. In reading my manual, the front differential calls for 75-90 fluid and the rear differential calls for 75-140. Drove home and was lo...
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75w140 won't hurt. If anything it's going to give you better wear protection. You'd need lab conditions to detect the difference in performance. Maybe a couple of HP and a tenth of an MPG.
