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post #1 of 2 Old 02-01-2014, 05:53 PM Thread Starter
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Front Differential Oil

Anyone know what weight front differential oil I should use in my 1999 F-250 Powerstroke 4X4 Superduty? Is 75W90 the right one?

99 4X4 Superduty extended cab Centurion 7.3 factory turbo Powerstroke, Edge Performance Chip, 2013 Harley Davidson FLHTK Ultra Limited Electra Glide. "Kilt Wearing Old Fart Biker"

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post #2 of 2 Old 02-01-2014, 06:29 PM
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75W90 Premium is what the manual says. You can go synthetic if you want, but I used Mobil 1 75W90, $5.29 a qt at meijers if you have one near you.

Originally Posted by ChiefRocka View Post
Great truck, but ugly and I felt like I was driving a penis down the road .....
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