Amsoil Series 2000

[aldive]

Do any of you guys use Series 2000 75w90 Synthetic Gear Lube ?

I am switching over from Mobil 1 tomorrow. My reasoning is hopeing for better gas mileage.

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[PUR PONY]

I run it in all my vehicles... since I am a dealer... haha

anyways... about the gas milage- I have never checked to see a difference

 

[Rhett]

I changed the rear end to AMSOIL Series 2000 75W-140 about 4 months ago. Before that it had whatever oil Ford puts in the open diffs from the factory.

Since that time I have notice no significant difference in mileage. I'm still getting my typical winter city mileage for my truck, 13.3 mpg.

For your reference, I currently run AMSOIL in the engine (motor oil) and rear differential only. I have not yet switched on the transmission or front diff.