How to Change Differential Oil

Thank you for the input

 

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Take Pictures when you do it. Thank's

 

Yes They Toll me Around $400 to $500. is a lot of Money

 

That's Why I'm here Learning from the pro's Thank's

 

Thank you

 

I have a 2006 2wd 2.7 and the rear axle lube capacity is listed as 3.5 quarts. I used 75w90 but 75w85 or 80w90 will be fine too. As long as it's in that weight range we will have no issues.

I would not use 75w140, which is completely overkill for your 4-cylinder truck... unless you beat the hell out of it all day every day. Even then I would still use a 75w90

 

The math doesn't add up on their end. That would be free labor based on what they quoted you per quart of fluid. Doesn't surprise me coming from a dealer.

 

For our rear diffs, higher second number means the oil will be more stable and won't thin out as much when the diff heats up (about 11% of engine power is lost as friction heat in the rear diff). There's no worry of the oil being too thick, as 140 weight gear oil when hot is still thinner than 75 weight gear oil when cold. I used Castrol 75W90 synth and got some chatter when powering out of corners. Switched to Quaker 75W140 synth 2.5 years ago and the chatter hasn't appeared since.

Oils with bigger difference between first- and second numbers tend to be more difficult to manufacture, so 75W140 tends to cost slightly more than 75W90, etc. Toyota is specifying the "minimum" with 75W85. In theory 75W90 would cost more than 75W85, but other market mechanisms negate this.

 

Found Redline 75W85 GL5 at Summit Racing for $16.49 a quart