what oil do you guys use

[weeder]

Time to change the oil in the 1705 Massey, a friend said to use shell T5 10w30 is that a good oil??

 

[ray66v]

I believe a lot of us are currently using Rotella T6, 15w-40. Hard to beat. A quality product for a good price.

 

[weeder]

Well I have already bought some T5 10w30 is that ok?

 

[5030]

Is it gas or diesel? T5 is fine for gas, T6 for diesel.

 

[weeder]

Is it gas or diesel? T5 is fine for gas, T6 for diesel.

Well it is diesel tractor but the label said it is for diesel? I'm confused?

 

[5030]

T5 is semi synthetic, T6 is full synthetic. I believe T5 only comes in 15-40 whereas T6 comes in 5-40.

 

[DMW]

Well it is diesel tractor but the label said it is for diesel? I'm confused?

You're good to go. It's Diesel rated. Far better quality than when the Iseki 3 cylinder came out 40+ years ago. The GCs have been using the same basic engine for 25 years now. For a lot of winter use if stored unheated, may want to switch to a 0W or 5W oil.

Personally use Mobil Delvac 0W40. Its all about price and availability.

 

[weeder]

Ok thanks for the advice this tractor is always stored inside out of the weather especially in the cold never more than 40 degrees inside in the coldest months.

 

[Runner]

I have used Shell Rotella T 10w-30 in my 2007 JD2520 for 18 years with no issues.

 

[DarkBlack]

Is it gas or diesel? T5 is fine for gas, T6 for diesel.

Wrong. They’re both diesel rated oils, intended for diesel engines. You can run either in a gasoline engine, if that’s what you want

 

[DarkBlack]

I believe T5 only comes in 15-40 whereas T6 comes in 5-40.

Wrong. Even the OP’s second post already stated he’s in physical possession of 10w-30 T5.
You can also get T6 as a 10w-30

 

[ray66v]

Well I have already bought some T5 10w30 is that ok?

Yes, it's fine.

 

[CloverKnollFarms]

I use Rotella T6

 

[dadohead]

OP- There is no product sold with more Marketing wonk than motor oil.... and criticizing ones choice is akin to calling your sister ugly. LOOK UP OIL PERFORMANCE DATA. It's out there. This site is bit of an echo chamber; many here are enamored with Rotella. Know that T5 consistantly outperforms T6. There are much better oils though.

Also, know that diesel oils are formulated to deal with the soot and filth of a diesel engine. In the test data you'll see they also test significantly lower in PSI shear and thermal breakdown than modern automotive motor oils. Gas engines run hotter and under higher stress than diesels... air cooled gas engine requirements are the worst! MANY sources say "never run diesel oil in a gas engine". Will it work? Many here will say they've done it for 100 years without issue. Just know that doing it leaves a very small factor of safety.

I run the diesel oil with the best test data available. If it's good enough for a $300k combine and excavator... it's good enough for my compact.