what type of transmission oil should I use for my 91 f150 5.8l 4 speed automatic?

30

Asked by Mar 04, 2015 at 05:29 PM about the 1991 Ford F-150 XLT Lariat Extended Cab LB

Question type: Maintenance & Repair

7 Answers

405

DEXTRON III OR MERCRON V

3 out of 3 people think this is helpful.
35,465

I think it says on the dipstick.

3 out of 3 people think this is helpful.
146,585

It does Bob. I came up with Mercon V, NOT type F

1 out of 1 people think this is helpful.
30

hi guys you are right it says to use the mercron. can i also use the dex merc?

1 out of 1 people think this is helpful.
146,585

http://www.oreillyauto.com/site/c/search/Automatic+Transmission+Fluid+-+Vehicle+Specific/04196/C0207.oap?year=1991&make=Ford&model=F-150&vi=5005966 ...says you can

3 out of 3 people think this is helpful.
35,465

Type F hasn't been used recently. They used to use it in some of the older Ford power steering applications.

3 out of 3 people think this is helpful.
30

thank you all

2 out of 2 people think this is helpful.

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