What oil do you use?
Hotshot
Joined: Jun 2015
Posts: 12,837
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When I first obtained my 1996 F250 4x4, 5.8 and zf5 back in May of 2024…and yet the original Ford owners manual in my truck's glove compartment said 5w-30.
Today, changed the oil again (3rd time since having owned it and it's been driven about 4,100 miles so far) to 5w-30 Castrol GTX high mileage synthetic blend, and I had a Motocraft FL-820-S oil filter installed. Right after the oil change I added STP Zinc additive (that fluid is thick).
Today, changed the oil again (3rd time since having owned it and it's been driven about 4,100 miles so far) to 5w-30 Castrol GTX high mileage synthetic blend, and I had a Motocraft FL-820-S oil filter installed. Right after the oil change I added STP Zinc additive (that fluid is thick).
There is no sense in changing the oil three times in 4K miles unless you think that the truck was not maintained at all and you are trying to flush out sludge. There is also no need for any extra zinc. A ‘96 351W has a roller camshaft.
Mountain Pass
Joined: Aug 2009
Posts: 112
Likes: 25
For my ('09) 4.6l 3V F150:
The manual wants 5W20w/ 5W30 as a suitable substitute
I use 5W30 full synthetic, basically whatever brand has the "best" sale. @ 5k or less intervals. ..
My F150 gets the majority of the trailer towing duties.
The manual wants 5W20w/ 5W30 as a suitable substitute
I use 5W30 full synthetic, basically whatever brand has the "best" sale. @ 5k or less intervals. ..
My F150 gets the majority of the trailer towing duties.
Tuned
Joined: Jul 2023
Posts: 465
Likes: 51
Now that I look at my odometer reading as of this morning, between my second oil change and the most recent one (yesterday) I had just under 2,000 miles. My initial reason for having the oil changed yesterday, I had the impression I was close to 3,000 miles for an interval, and I was wrong. With the Motocraft FL-820-S oil filter in it now, things should be better.
The bottom of the air filter assembly is much cleaner than on my 1991 Ford F250 with the 5.0 and M5OD, but I still plan on keeping up with new filters when I feel its needed.
The bottom of the air filter assembly is much cleaner than on my 1991 Ford F250 with the 5.0 and M5OD, but I still plan on keeping up with new filters when I feel its needed.
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