89 f150, I-6, 5spd, 2wd.

thinkin about changing the oil in the trans and rear. would this be a good idea? if so, what should i use?

one mechanic said the rear is a good idea but he would probably hold off in the trans because it may make a problem come out or somthing... like it may be there but the older oil is keeping it ok

 

It is ALWAYS a good thing to change the oil. It's an old wive's tale that old fluid holds an old trans together. Especially with a manual. You're not an old wife, are you?

I'm pretty sure that your trans uses MERCON (now MERCON V) ATF. All the newer manuals use that.

 

might as well invest in Amsoil and be done with it.

 

i have heard good things of amsoil...

for the trans or rear or both? if so, what exact products from them and where can i get it?

thanks!

 

Always better off with fresh oil, ATF, rear end gear lube, ect. If nothing else, "old" oil cannot suspend any more containaments safely and the additive package is spent.

No engine or transmission benefits from old, negelected oil. With old oils, you are much more suspectible to sludge, engine and transmission varnish build-up with deposits.

Lastly, "old oils" cannot take heat, transfer heat, and protect vital engine and transmission parts as fresh lubricants can. If my mechanic tauted keeping old lubricants in because it keeps a problem from developing, I would slowly back way, turn and run as fast as I can!

I would take a close look at Royal Purple's engine, ATF and rear end lubricants. It's money well spent for your'89 Ford F-150. The 300CI I-6 is a great engine. My brother in Ohio has a '82 F-100 short bed with the 300CI I-6. 280K+ miles tooka 600 mile trip (round trip) with zero problems and nearly 18.4 MPG highway, two Saturdays ago.

1982 was last of the F-100s, I beleive.

 

ed,
thanks for the info... i can get royal purple at my local auto parts store...

the atf.. is that for the trans? any weight or? and what for the rear end?

i was going to use them for motor oil but i heard a tip that using diesel oil is the best, so i was going to use rotella t, which is for both diesel and gas enignes

 

head to this site and use their search. pay the $20 to become a preferred customer, even if you never buy anything ever again, it'll save you a bunch of money now!
http://www.amsoil.com/scripts/runisa...msoiloaf:index

 

Use MERCON or MERCON V ATF. There are no "weights" for ATF.

 

ok... what about the oil for the rear? what weight should i use there?

also, brands i should be lookin at are...
amsoil
royal purple
lucas?
others?

 

WOW! if you'd go to the link i posted, you could enter your info and come up with more info than you need!


LUBRICANTS & FLUIDS
Engine Oil
Grade 1......API*
SAE 0W-30 Synthetic Signature Series Oil
SAE 5W-30 Synthetic Motor Oil
SAE 5W-30 XL Synthetic Motor Oil
All Temps......5W-30
Manual Transmission,4-SPD.....SLF[1]
SAE 10W-40 XL Synthetic Motor Oil
Manual Transmission,5-SPD.....MA5
Synthetic Automatic Transmission Fluid
Automatic Transmission.....MA
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Differential, Front .....GL-5[2]
All Temps......80W-90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Controlled Slip Differential, Rear .....GL-5*[2]
All Temps......80W-90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
Standard Differential, Rear .....GL-5
All Temps......80W-90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Transfer Case,Warner 1356.....MA
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Transfer Case,Warner 1345.....MA
Synthetic Automatic Transmission Fluid
Torque-Drive™ Synthetic Automatic Transmission Fluid (ATD)
Fluids
Power Steering Fluid.....FA
Supershift Racing Transmission Fluid
Brake Fluid.....HBH
Clutch Fluid.....HBH

1. SLF is MT fluid meeting spec.
WSD-M2C200-C
2. CS IDENTIFICATION: Letter & number on plate on door lock
pillar. (Models W/ Traction-Lok Rear Axle Add 4 oz of
friction modifier part no. C8AZ-19B546A (EST-M2C118-A)

 

thanks for the "wow" and that big list... but it still doesnt answer my question.. i dont want a list of different oils, i want the best one to run.

i was just looking for one answer... like " use 75w90 in the rear because" and "use atf in the trans becauase"

and i am looking for other brands because i can not find a place around me that sells amsoil.

i am leaning towards lucas... anyone have anything bad to say?

 

I have had good results with Royal Purple Syncromax in my 5speed trans. use any synthetic 75/90 gear oil for the rear.

 

thanks for the review and info. short and simple


i think its 3 qts for the rear... what about the trans?

 

I think the trans holds between 4 and 5 quarts.