What oil is best? and what ratio?

[jakethesnake]

I’ve heard of people running it in cars like that. I run it in small gas engines. Seems to help carburetors flowing between uses

not sure what I’m running now I think I’m out of the raisman full synthetic. I respected it. I’d buy again

 

[Duce]

Have run Rotella T6 synthetic 5-40 straight in my truck since new, 265,000 miles without any issues. Probably work just fine at 40:1 in a saw.

 

[jakethesnake]

Have run Rotella T6 synthetic 5-40 straight in my truck since new, 265,000 miles without any issues. Probably work just fine at 40:1 in a saw.

I’m a firm believer in the t4 Dino. Been good for 10s of thousands of hours in my diesels. Under heavy load

 

[jakethesnake]

Actually I run my gasoline vehicles on it too. With very good success. Good orl

 

[whitesnake]

Have run Rotella T6 synthetic 5-40 straight in my truck since new, 265,000 miles without any issues. Probably work just fine at 40:1 in a saw.

I put that sh!t in everything!!!

 

[Nutball]

Actually I run my gasoline vehicles on it too. With very good success. Good orl

So, gas oil is no good in a diesel, but diesel oil is just fine in a gas engine? Different additives in them, I think, so it would be nice to know what is and isn't good to do.

 

[MustangMike]

I'm no expert on this, but from what I've read, you should use diesel oil in a diesel and non-diesel oil in gas engines.

The additives are different for a reason, and what is good for one is not always good for the other.

That does not mean you cannot get away with doing the wrong thing, it is just not the best thing to do.

 

[Mastermind]

I run Rotella 15-40 in older gas engines, and high performance engines. I usually add a pint of Lucus oil stabilizer as well. Some don't have hardened valve seats, and others have high valve spring pressure. The added zinc at least makes me feel better.

 

[Duce]

So, gas oil is no good in a diesel, but diesel oil is just fine in a gas engine? Different additives in them, I think, so it would be nice to know what is and isn't good to do.

Here is some info: www.hotshotsecret.com/diesel-vs-gas-engine-oils/

 

[farminkarman]

I'm no expert on this, but from what I've read, you should use diesel oil in a diesel and non-diesel oil in gas engines.

The additives are different for a reason, and what is good for one is not always good for the other.

That does not mean you cannot get away with doing the wrong thing, it is just not the best thing to do.

The only problem with running Rotella (T4-T6) in a modern gasoline vehicle is the zinc can ruin your catalytic converter over time...this is only relevant to those who have to pass emissions. Shell has reduced the zinc content in recent years, which is why @Mastermind is on the right track adding zddp for his older flat tappet engines. If you don't have a cat, or care about passing emissions, then Rotella is great to run in a gas engine.

 

[huskihl]

I’ve used the Rotella t4 15-40 for years. The cleaning properties are quite substantial. Wife had 250k on her Tahoe and started burning a quart every oil change. 3k miles on t4 15-40 and oil consumption stopped. It’s all my 02 Duramax has seen since new. Had to get fancy and run the t6 5-40 synthetic in the Ford

 

[farminkarman]

I should add that I run rotella T4 & T6 in all my off-road stuff....I like the T6 in my tractor that I have to start in the winter, and T4 in everything else.

 

[Kiwioilboiler]

T4 is also fantastic wet clutch motor bike oil. Oily, but not so slippery that the clutch plates slip.
Have run it or Delo in my 2T gearboxes for 20 years without failure, and know of many who use it in 4T engine/gearbox too.

 

[Mastermind]

I like the T6 in my tractor that I have to start in the winter

I'm listening. T6 is better for cold weather then?

 

[Duce]

At 20F or below seems synthetic oils are easier on equipment. Switched hydraulic/trans to conventional new Holland oil, took tractor too long to warm so pump squealing stopped. Drained that day and filled with synthetic, problem solved. Tractor is mainly used for firewood and snow removal. Warmer climates would be different, I am sure.

 

[farminkarman]

I'm listening. T6 is better for cold weather then?

Yes, in the one that has winter duty, I run the T6 5W-40….then I don’t have to drain oil before winter….handles hot weather just fine too. The 15-40 is a pain to deal with when it gets really cold.

 

[Duce]

Yes, in the one that has winter duty, I run the T6 5W-40….then I don’t have to drain oil before winter….handles hot weather just fine too. The 15-40 is a pain to deal with when it gets really cold.

I guess we both need to move, so we can use cheaper oils!

 

[Nutball]

The only problem with running Rotella (T4-T6) in a modern gasoline vehicle is the zinc can ruin your catalytic converter over time...this is only relevant to those who have to pass emissions. Shell has reduced the zinc content in recent years, which is why @Mastermind is on the right track adding zddp for his older flat tappet engines. If you don't have a cat, or care about passing emissions, then Rotella is great to run in a gas engine.

Don't they put a cat on diesels too? My dad's 1996 dodge 2500 had one.

 

[Mastermind]

Yes, in the one that has winter duty, I run the T6 5W-40….then I don’t have to drain oil before winter….handles hot weather just fine too. The 15-40 is a pain to deal with when it gets really cold.

I bought a NOCO 2500A booster. Holy hell....that sob spins the old 2640. Might not need to worry about oil viscosity. LOL

 

[farminkarman]

Don't they put a cat on diesels too? My dad's 1996 dodge 2500 had one.

Not the same kind of unit.