I hope so, I have 130K
I used it on all of my rigs and never had an oil related issue. Usually transmission issues. I am roiugh on transmissions.

 

Where do I get AMS Oil and Richmond Gear oil up here?

 

I know that the NAPA in Arlington has Royal Purple and thare other store in Stanwood has AMSOIL. Maybe you try the local NAPA

 

synthetic is only a problem if there is already a leak....so if you had a small not noticeable oil leak synthetic will make it noticeable

 

"Martys' Tow Rig" ought to get some hard use... tow 'em, tow 'em, tow 'em, Rawhide!
That's what I was getting at...there have been a lot of arguments about syn vs dino oil, esp in older engines.

No oil leaks in the '95, the '78 has fresh valve cover gaskets and no oil seepage now so they're good to go.

My '95 owners manual says use dino SAE/API oil and no additives. It's dated information so I would use what has been tested to work best for the motor.

Some manfr's specify syn oil. The aircraft industry has been using synthetics for a long long time, and I'm keen on their maintenance knowledge & procedures. (sans their current out-sourcing maintenance.)

And the "3000 mile oil change" myth (unless severe use) and "Dark oil myth". I change every 5K-7K miles for 30 years and never had an oil-related problem. Some 1,000 mile tows were mixed in with normal driving.

Yea, $200 for the S/S reusable filter is just too mucho dinero for unproven benefits (unless there's a unbiased review somewhere). I'll stick with the Motorcraft

Syn advantages (from NPRA):

-Measurably better low and high temperature viscosity performance.
-Better chemical & shear stability.
-Decreased evaporative loss.
-Resists oxidation, thermal breakdown and oil sludge problems.
-Reduced engine deposits in some applications (Turbos)
-Extended drain intervals with the environmental benefit of less waste oil created.
-Better viscosity index relates to lower cold start viscosity
-Better fuel economy due to more efficient engine operation.
-Decreased oil consumption.
-Provide a heavier, more stable protective oil film for engine bearings and piston rings.
-

Disadvantages of synthetic motor oils:

-3X the cost (made up for by longer change interval).
-The lower friction makes them unsuitable for engine break-in.
-Potential decomposition problems in certain chemical environments (industrial use dominantly).

Syn Wins.

 

Oh, I completely agree! Synthetic wins hands down! I have 93k on my ’02 Super Duty, use Rotella T 5W-40 Synthetic, and have never had an oil related problem. If you have a PowerStroke, here’s a link that talks about oil specs as well as a few other things ~ http://www.intellidog.com/dieselmann/powers~1.htm

 

Are Synthetics ok for breaking a motor in?...Back in Carolina I was told they weren't.

 

No!
Cannot use Synthetics on new motors I think they suggest 10K miles of dino first

 

Read post #20 "Disadvantages of synthetics"

 

A monster Amsoil thread is a good read on specifications, uses, and competing products. Experiences and lab reports gained from many users over many years.

All the posts are informative and stay on topic, yet starting with post #721 might give a good review. It is an oldold ongoing discussion, flaming not allowed, and an excellent place for lubricant discussion.

 

Whatever oil you use,,be sure it is API rated some are, and some aren't.