What kind of oil do you run in your 4.0L?

[289-tiger-]

Like I said, they have worked on millions of vehicles without problems. They are just a rip off when it comes to price vs. quality. You can get much better filters for less money. A FRAM most likely won't do any damage, but it definitely will not benefit you either. You are much better off with something like a Motorcraft since you get a much better quality filter for a lower price.

I believe you when you say that you have had no problems with FRAMs, but they were a waste of money when you could have bought a better quality filter at a lower price.

I'll take the 8 bucks a year I overspent and be thankful I did not have to spend 1 hour at the dealership at $75 plus an hour.

All in good fun, sir

Good luck

 

[exbass94]

I'll take the 8 bucks a year I overspent and be thankful I did not have to spend 1 hour at the dealership at $75 plus an hour.

All in good fun, sir

Good luck

Umm....you can get a Motorcraft filter at Walmart for about $3.50. They're in the same aisle as the Frams.

 

[289-tiger-]

Umm....you can get a Motorcraft filter at Walmart for about $3.50. They're in the same aisle as the Frams.

You didn't get it but thank you.

Good luck

 

[JohnnyO]

The GOLD STANDARD is used oil analysis. Try it with synthetic. Try it with conventional. You'll find a significant difference.

I will occasionally send my used oil to a lab just for kicks. Tried a few syns and blends over the years, so far the lowest wear metals on all my family's cars came with Pennzoil Platinum Synthetic. Mobil 1 was good, as expected*. Motorcraft Blend is nearly as good.

* For whatever reason, the UOA on Mobil 1 Truck & SUV came back awful and they advised me not to run it more that 3000 miles.
I'd say stick with the plain Mobil 1 if you want Mobil 1.

 

[Stranger ranger]

i typically run 3 quarts lucas 2 quarts penz.

 

[MAKG]

* For whatever reason, the UOA on Mobil 1 Truck & SUV came back awful and they advised me not to run it more that 3000 miles.
I'd say stick with the plain Mobil 1 if you want Mobil 1.

I thought all the "special" Mobil 1's weren't synthetic at all, and didn't claim to be (except for name confusion).

 

[JohnnyO]

As far as I know, the Mobil 1's are synthetic. The Mobil Clean 5000 and Clean 7500 oils are not although they have a bottle and label that looks very similar to Mobil 1.

 

[nismotunedgtr]

Mobil 5000 and a Motorcraft FL1A.

 

[jmg8550]

castol 5w30 synth blend. run that in everything i've ever owned

 

[lilrebelranger67]

Not to sound like a broken record but avoid FRAM filters, they're junk. Stick to motorcraft, purlator, napa gold, wix, ext.

justify that statement about fram your worrying me what do i not know(edit wait never mind jumped the gun before i read the rest of the thread)

 

[rickcdewitt]

what would you guys run on a 4.0 with low oil pressure this winter?

 

[MAKG]

what would you guys run on a 4.0 with low oil pressure this winter?

A 1991 in California? 10W-30. Maybe if you drive it up to Nunavut you might consider 5W-30.

Trying to get the oil pressure up by playing with viscosity is a bit like trying to engrave a fancy pattern with a two handed sledgehammer. It is very possible -- even likely -- to have wide clearances in some parts of the engine and normal clearances in others. Heavy oil in normal clearances damages them.

 

[rickcdewitt]

It is very possible -- even likely -- to have wide clearances in some parts of the engine and normal clearances in others

thats how it works. actually a 91 with a 93 engine ran by a maryland 92 system.

the truck it came out of was a highschoolers beater that he flipped on its side at speed and flipped the fuel cut off.

it had no thermostat when pulled and will start to smokin a little if i tilt my truck a lot wheeling.has low compression(worst is about 150psi) in all cylinders but one,but at least it has no sunk valves.

the oil gauge is a joke from the factory but it read higher with the 2.9, about 'M' and now with the 4.0 it reads 'N' with 10w-40.it has cold lifter tick for a few seconds after letting it sit for days.

do you guys think 10w-30 will lower it to an unsafe level? what cheap oil might you try?


she is my cheap test roach while i look for or build a good 4.0.almost 18 mpg ain't bad for a near death engine i'll run it till i don't trust it to make it to town

 

[JULIUS]

I use Castrol 5w-20 synthetic blend and I've used Fram filters off and on for 40 years and never had a problem.

 

[fastpakr]

Does Ford call for 5w20 in the newer 4.0's?