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101Volts · 03-28-2015, 01:06 PM

I was looking up Differential Fluids and Autozone's computer suggests 80w90. But is there any problem with running 75w90? I saw some nice Mobil-1 Full Synthetic in there which I was thinking of using.

03-28-2015, 01:06 PM	#23 (permalink)
101Volts Master EcoModder Join Date: Dec 2012 Location: Pennsylvania Posts: 506 Woody - '90 Mercury Grand Marquis Wagon LS Last 3: 19.57 mpg (US) Brick - '99 Chevrolet K2500 Suburban LS Last 3: 12.94 mpg (US) M. C. - '01 Chevrolet Impala Base 90 day: 18.73 mpg (US) R. J. - '05 Ford Explorer 4wd 90 day: 16.66 mpg (US) Thanks: 936 Thanked 34 Times in 28 Posts	I was looking up Differential Fluids and Autozone's computer suggests 80w90. But is there any problem with running 75w90? I saw some nice Mobil-1 Full Synthetic in there which I was thinking of using. __________________