Dumb oil question

Reply Subscribe

Thread Tools

Search this Thread

Aug 22, 2020 | 07:37 PM

wcwinans

Thread Starter

Mountain Pass

Joined: Mar 2018

Posts: 208

Likes: 1

From: Oregon

Dumb oil question

Hey there FTE,

I'm seeking a little clarity here. Is the rear differential fluid the same as the rear axle lubricant? I have two different terminologies I'm seeing in my two DIY books. What kind of fluid do you use for my 1989 E150 with 5.0L 302 rear-wheel drive? I don't think there's a transfer case with a rear-wheel drive, right? Thanks for entertaining my dumb questions.

Matt

1989 E150 5.0L 302 V8

Aug 22, 2020 | 08:04 PM

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

Yes they are the same, 80w90 gear oil was original I believe but other viscosities could be used such as 75w90 and synthetic instead of conventional oil.

Aug 22, 2020 | 08:19 PM

wcwinans

Thread Starter

Mountain Pass

Joined: Mar 2018

Posts: 208

Likes: 1

From: Oregon

Quote:

Originally Posted by Conanski

Yes they are the same, 80w90 gear oil was original I believe but other viscosities could be used such as 75w90 and synthetic instead of conventional oil.

hey,thanks! that's what i thought.

Aug 22, 2020 | 10:54 PM

baddad457

Hotshot

Joined: May 2003

Posts: 11,141

Likes: 25

From: south louisiana

Quote:

Originally Posted by wcwinans

If it hasn't been changed, it's a good time to do it now. You'll need to get a new cover gasket to do the job. Rear cover needs to be pulled off to change the oil