Oil type Allis wd45

[Royboy21]

Would it be a problem using diesel rated
10 30 oil in my wd45 and wc? It is
fleet farm api service cj4, ci-4
Plus, ch4/sl. Will it wreck my seals?

 

[russ1]

I use shell rotella 15w40 diesel oil in all my old tractors.

 

[Aaron SEIA]

No problems at all.
AaronSEIA

 

[DrAllis]

Normally, I would agree. But, some of today's modern diesel engine oils have their zinc levels reduced for emissions. Lower zinc levels CAN cause excessive wear on the camshaft and flat faced lifters. For a modern engine, this isn't any problem as most have roller type valve lifters, which don't need that extra zinc. For me, I'm adding zinc to every oil change from now on as we had a camshaft lobe fail in a 8050 tractor for no good reason, other than the possibility of low zinc content in the new modern oil.

 

[Traditional Farmer]

I've used 15W-40 diesel grade oil in all my tractors for over 20 years,no problems so far.

 

[4wdtom]

Where do you get the zinc? What product do you add?

 

[DrAllis]

I just bought some tonite. Rislone brand ZDDP additive. Helps reduce wear on flat tappet camshafts. I've got to research this more to find a larger quantity at a better price. I too have used 15W-40 Rotella for years and now have had a camshaft failure. 15W-40 of today has less ZINC that 15W-40 of 20 years ago by government emissions demands.

This post was edited by DrAllis on 03/24/2022 at 03:55 pm.

 

[4wdtom]

Thanks Dr. Allis! I have a couple of oil changes (WD and B) this spring so will look for this and add as directed.

 

[Mike Groom]

I use Delvac 15 w 40 in all my flat tappet engines, Lucas and other company's make a zinc additive and are available at all the auto parts stores.

 

[Allis Dave]

I started using valvoline VR1 racing oil. It has high zinc level for flat tappet cams. I costs a little more but you dn't have to pay $20 for a bottle of zinc additive. I also figured it's better since you know the mix. Lucas zinc additive says to add one bottle per oil change. How do they now many quarts are in my system???

 

[dhermesc]

Zinc is not an issue with a WD45 its only needed in engines with high tension valve springs - especially during break in. I suspect that WD 45 has been broken in longer than I have been alive. When that tractor was new zinc wasn't even an additive in engine oil.

Diesel oil CH4 - Introduced in 1998. For high-speed, four-stroke engines designed to meet 1998 exhaust emission standards. CH-4 oils are specifically compounded for use with diesel fuels ranging in sulfur content up to 0.5% weight.


Gas oil rated SL-For 2004 and older automotive engines.

It is a low ash oil which is important for gas engines - some diesel oils (probably all obsolete now) have/had a high ash content that will build up deposits on the valves. International made a huge deal about using low ash oil with their gas engines - never did hear much (any) about low ash oil in other makes.