Engine oil

[dfrisk]

Thank goodness its only approx. one quart! What do you think about the lack of zinc in modern engine oil?

I hope your putting 1-1/2 quarts of oil in your 10,12,14,& 16 hp Kohler's. See my third sentence in my above post. Shell Rotella has plenty of ZDDP. That's what I use. The valve springs in Kohler engines have very low spring pressure, not at all like a high reving V-8 with high lift long duration racing cam shafts. The need for ZDDP is directly proportional to the amount of valve spring pressure. ZDDP doesn't make me loose ANY sleep.

 

[gpapa]

I hope your putting 1-1/2 quarts of oil in your 10,12,14,& 16 hp Kohler's. See my third sentence in my above post. Shell Rotella has plenty of ZDDP. That's what I use. The valve springs in Kohler engines have very low spring pressure, not at all like a high reving V-8 with high lift long duration racing cam shafts. The need for ZDDP is directly proportional to the amount of valve spring pressure. ZDDP doesn't make me loose ANY sleep.

5 pints anyway - , approx. How much ZDDP is in Rotella?

 

[RAllison]

Gpapa the amount is in post#59

 

[RAllison]

Rotella is not hard to find. You can get it in straight grade or 10W-30 /15W-40

You are correct sir,I just wasn't looking around well enough

 

[gpapa]

Gpapa the amount is in post#59

Thanks,

 

[Stevenovick1]

Wait a minute. If zinc was still in Rotella it would interfere with the catalytic converter

 

[Stevenovick1]

I believe Rotella had zinc in it years ago. But had to be removed

 

[snicklas]

The Rotella that Denny is talking about it 15w-40 DIESEL oil. He had an OBS 7.3PSD and used the same oil in his Cubs. I used to use the extra that I had for my 6.0PSD. I bought a case of Rotella Straight 30 weight at a store that was going out of business, and have been using that in my Cubs. I quit using the diesel oil when I switched to 5w-40 Full Synthetic for my 6.0.

 

[proper]

What can I say, my brother works at a JD dealer and I get a discount on the stuff.

I use Ford 30 wt, (dino only) changed every spring. Only use ethanol-free gas.

 

[Stevenovick1]

Just filled my 72 Buick with ethanol free today. I’m lucky i have stations that have it. carburetor and ethanol = popcorn

 

[Stevenovick1]

Yeah I switched to 5w-40. They don’t want you using 15-40 anymore. I keep forgetting Rotella has 30w.

 

[Stevenovick1]

I run BradPenn 10w-30w blend in the ol 72 Buick 455

 

[Stevenovick1]

When i filled the Buick today i put couple ounces of marvell oil in the tank 20 gal

 

[Stevenovick1]

Because of winter coming. car will not be moving

 

[1811Cub]

I run OEM Cub Cadet SAE30 oil, purchased at my local Tractor Supply. Today, I changed the oil for my 1050. It purrs like a kitten.

 

[dfrisk]

The Rotella that Denny is talking about it 15w-40 DIESEL oil. He had an OBS 7.3PSD and used the same oil in his Cubs. I used to use the extra that I had for my 6.0PSD. I bought a case of Rotella Straight 30 weight at a store that was going out of business, and have been using that in my Cubs. I quit using the diesel oil when I switched to 5w-40 Full Synthetic for my 6.0.

SCOTT - I called Shell's ANSWER MAN for oil questions a couple times just to ask how much ZDDP Rotella had. He said all the different viscosities had some, but depended on it's rating, but the 15W-40 I used in my 7.3L was 1400 PPM. Guy I talked to one time said the straight weights, 30W, 40W, think there was a 50W mostly to use in Detroit Diesel engines, the screaming 2-strokes, not the big 4 stroke Cummins Clones.
SON is running 10W-30 Rotella T-5 semi-synthetic in my old 7.3L now, has run 2-3 changes of it. It was his daily driver 7-8 miles to/from work for about 6-8 months. The semi-synthetic lighter weight oil made it start unassisted after work much easier. I ran a couple changes of 10W-30 every winter for the same reason when it was my daily driver. It really helped starting. I also got my best fuel MPG with 10W-30 oil on those nice spring days too.
I have not talked to SHELL since ROTELLA changed to their T-4, T-5, & T-6 formulas. I suspect it still has ZDDP, it's rated CK-4, CJ-4, CI-4 PLUS, CI-4, and CH-4. The old pre T-4 stuff was rated the same except the CK-4 didn't exist yet, and it also has an SM spark engine rating. I'm switching my old flat tappet gasoline engines all over to Rotella 15W-40 T-4. The valve springs have REALLY low pressures, no need for much ZDDP, I always thought it was funny, I started using Rotella for my 7.3L PSD, and it was the ONLY engine I used it in that didn't need ZDDP, it had those funky ball mounted rocker arms, and some sort of roller cam followers, I can't remember if it had roller tipped rocker arms or not, might have.
Far as what works in my old FARMALL M & Super H, some people still put Non-Detergent oil like the 1939 owners manual recommends.
I used Mobil 1 in my 2006 Volvo S40, using Mobil 1 in my 2018 RAM 1500 5.7L Hemi. Since I'm only driving +/- 3000 miles a year on the RAM I change the oil once a year. Short trips and stop & go driving are harder on oil than long highway trips. Seems like every trip I make is 5 miles each way.

 

[gpapa]

 

[gpapa]

Not sure what to think, anymore?

Zinc and Engine Oil Additives - YouTube

 

[1811Cub]

Interesting information. I guess it is one of the few cases where conventional dinosaur lubricants are better than entirely man made.

 

[dkirk]

Due to the low spring rate used in these flathead Kohler engines, a high Zinc content oil, or additives, really aren't needed. Remember the days when Briggs & Stratton ran plastic camshafts? The spring rates didn't change, just the cam material and these seemed to last just fine. We have the advantage of low tappet/cam forces due to the light spring rates and relatively low rpm that our engines run. In all my years of working on small engines, I've never seen a spalled cam surface or lifter.