Diesel oil

[DIM]

I've always had gas tractors till lately now I got diesel. Always heard you need motor oil for diesel but I can't find oil that says it's for diesel.Is this still true or will any oil work

 

[in-too-deep]

You need an oil with a C rating. It'll most likely be 15w40, but others are available.

 

[BarnyardEngineering]

Where do you shop for oil? Wherever that is, you need to get out more. Even Walmart sells oil for diesel engines, marked as such right on the packaging.

Shell Rotella T4 is a popular choice.

 

[RogerinIowa]

Rotella is most everywhere, even walmart.

 

[rusty6]

Been buying diesel oil for near 50 years now. It used to be designated "series III" and then later "DMO". Various weights from straight #10 and #30 to 10w-30 and 15w-40. I have also used non diesel 10w-30 in the Massey Perkins diesl for a few years with no adverse effects.

 

[Mike Groom]

I use Delvac, a Mobil product, but Rotella would be my second choice. Auto oil is not recommended. 15 W 40 diesel is everywhere.

 

[MarkB_MI]

API oil ratings for gasoline engines start with 'S', for 'spark', with SP being the current rating.

API ratings for oil burners start with 'C', for 'compression', with CK-4 being the current rating. The '-4' means it's for four-stroke engines

So if you find a CK-4 rated oil, chances are it will be suitable for your tractor. But check the tractor manufacturer's recommendations for more specific requirements.

 

[DIM]

Thanks everyone now that I know the codes I'll go back to the store and see if they did have it

 

[Steve@Advance]

Not only is diesel oil good for diesels, but it is also the best choice for older gas engines with flat tappet cams and pre emissions.

The modern gas oil is designed for roller cams and to be compatible with high tech emission systems and catalytic converters.

You can simplify your inventory by using diesel oil in all your small engines and older vehicles. But not for 2 cycle mix!

 

[Stephen Newell]

If you have to you can use regular oil but diesel oil would be better. Diesel oil does a better job of cleaning an engine and a diesel engine runs dirtier. You should be able to get Shell Rotella oil at walmart.

 

[JWA]

I have been running TSC's Traveller brand 15W-40W in my powerstroke, diesel and gas engines in my tractors as well as small engines for years with no problems, generally cheaper than Rotella. IMHO.