farmersamm
Member
The worst oil..................is NO oil. Anything else, is minutia.........
That's the opposite of what I've heard. I switched to T4 for my A and E4 from Valvoline SAE 30 for that reason. I researched but never found out if the Valvoline contained ZDDP for flat tappet. Had the cam and lifters ground when I rebuilt the Buda and didn't want the risk. With 15W-40 I had to adjust the A relief quite a bit to get my pressure back so I may go to T4 30 next time.I have been told by a very seasoned tractor mechanic NOT to use it in any flat tappet engines. Especially the old fords. He has seen it wear out the cam and tappets because Rotella doesn't have good wearing properties for those types of engines. Just passing it on ,if it helps you. Don't know what the farmall engines have.
That is true, I was referring to its common use in auto oils available at your corner service stations.Actually ZDDP first got its start in the late 1930s and received a patent in the early 40s. It came into its own during WW2 with high revving airplane engines.
I used Shell Rotella in my Kubota M6800 for over 20 years. It worked just fine.I went shopping at Menards today. I bought another mower battery that is on sale and 10w30 oil. I need to change the oil in my 1950 Farmall C.
I bought the cheapest Valvoline Menard sells. Now I'm wondering why can't I use 10w30 Shell Rotella in an old tractor? It is cheaper.
What would zinc hurt an old Farmall without a cadillac converter. The Farmall rides like a Cadillac.
Can I use Shell Rotella in my Kubota? Currently I use Kubota oil from the Kubota dealer.
emissions specs and anti wear additivesWhat kind of warranty problems with ROT-T? Probably a billion miles of OTR 1 million mile engines have been running it for decades. I used it for decades. It has the star burst rating for the current C class???
Being T1, T2, T3 ,T4, T5 or T6 is more important than viscosityI've run Shell Rotella in every diesel/gasoline engine I've ever owned, many different grades, sae30, 10w30, 15w40, 5w40, sae50. I've never had an oil related engine failure in any engine I have owned or own currently. There's no reason not to run Shell Rotella in anything that requires oil. imho
T4 off the shelf meets current diesel emission standards...emissions specs and anti wear additives
t4 and t5 have too many anti wear additives to be used on a wet clutch... as the clutch will start to slip... Thus its a no no.I'd be surprised if your 'bota doesn't specify a diesel-rated (CJ/CK) oil. If it doesn't there must be a good reason. I'd stick to the manufacturer's recommendation. The 'C', on the otherhand, was built long before modern oils and pretty much anything you can buy at Wally World today is far better than what was available back then. I tried 15W-40 diesel oil in my old Ford, but found it was a bit too stiff to crank over when it got down to -20F, so I now use 10W-30 whatever. It may have 5W-30 Rotella T6 in it now, but I'm not sure.
Just saying 'Rotella' doesn't mean much, as there are several different versions of Rotella with different specs. A little-known fact is that Rotella T6 carries the JASO MA spec, which means it's perfectly fine to use in motorcycles with wet clutches. Rotella T4 and T5 are NOT JASO MA rated.
May be different now BUT several farmers who bought Kubota tractors and used 'non-Bota' oil had their warranty claims denied.
API ratings for diesels .View attachment 109016View attachment 109018
T4 has been spec. JASO MA for years. I use it in my wet clutch ATVs and it seems to shift better.
pqiadata.org
I thought most direct drive piston aircraft didn't turn over about 2700 rpm. Most car engines can turn twice that fast.Actually ZDDP first got its start in the late 1930s and received a patent in the early 40s. It came into its own during WW2 with high revving airplane engines.
Years ago, I asked a chief at the sales agency of gas powered, air cooled engines we used: Hey Tom, can we use Diesel oil in these engines wthout voiding the warranty? He said: By all means, far better oil to use! So we did.showcrop
It may be asked her daily, but I only read post of interest to me.
I never considered using oil for diesel engines in my Old Farmall until I noticed was cheaper.
Go figure, add something to an oil , zinc, and charge less. LOL.
I remember SNL making a joke out of Lead free gas and it was more expensive. Take lead out of gas and it costs more.![]()
Yes, high reving was a bad choice of words. Maybe over worked or pushed to their limits would have been better.I thought most direct drive piston aircraft didn't turn over about 2700 rpm. Most car engines can turn twice that fast.
Yes, high reving was a bad choice of words. Maybe over worked or pushed to their limits would have been better.
Some aircraft did have 3,500 rpm operating speeds with a few higher than that. “Most” automobiles from the war years rarely saw anything close to that. It wasn’t until much later did the average auto see higher rpm’s. You could say that oil advancements and additives had a part in that.
Aircraft engine speed is limited by how fast the propeller can turn without its tips going supersonic. That's why modern direct-drive engines are limited to about 2700 rpm. The big engines of WWII military aircraft had huge propellers to handle their high horsepower, which further limited propeller rpm. Many of the WWII aircraft engines were geared and ran around 3000 engine rpm but about 1500 propeller rpm. The Merlin, Allison and P&W R-2800 all fit in this category.Yes, high reving was a bad choice of words. Maybe over worked or pushed to their limits would have been better.
Some aircraft did have 3,500 rpm operating speeds with a few higher than that. “Most” automobiles from the war years rarely saw anything close to that. It wasn’t until much later did the average auto see higher rpm’s. You could say that oil advancements and additives had a part in that.
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