Oil change help?

[Gary Fowler]

I think I would be a little suspicious of a diesel oil that stayed clear rather than black. Diesel oils are high in detergents so they can keep the carbon cleaned from diesel engines. IF the oil stays clear, it is not doing a good job of cleaning the engine. The carbon is still being produced regardless of the oil used. I have never seen a diesel oil that wasnt black after a few hours of running it and the black color doesnt hurt a thing, it is actually a good thing to see in your oil on a diesel

 

[SunnyJim]

- Shell Rotella T5 Synthetic Blend Technology would be a good option. Its a syn-blend with the higher detergency and ZDDP of a modern diesel oil. It is CJ-4 rated for diesels and SM rated for petrol engines. This would allow you to have 1 oil that will work well in any engine.

 

[Jay4200]

I used the Shell Rotella 15W40 but it will be black on the dipstick after about 10 hours. I use the Shell rotella 5W40 and the oil is still like you just put in after 40 hours. I would recommend the Shell Rotella 5W40 synthetic. :thumbsup:

That fact would make me lean toward Shell Rotella 15W40. Where is all that soot ending up if it is not in the oil??

I put Rotella 15W-40 in just about everything I own. I don't worry about cold weather starting - if it is below 15 degrees, I'm not going to be there either .

JayC

 

[daman1]

Stick with a better diesel rating like CI or CJ-4 the Mobil specs like 0w30 and other passenger car oil's unless it's a full diesel rated oil will have a much weaker light diesel rating and will not have the soot dispersant and acid neutralizing capability's a full CI,CJ-4 rated oil will have.

i see this posted here allot i would never use Mobil 0w30 in a diesel,soot is wear particles and this oil just can't handle it,it's not what it's intended purpose is it was designed as a fuel saving oil with a (bad for diesel) low HTHS meant for mileage increase.

 

[klm]

Has anyone found Rotella 5W40 synthetic in anything other than quart or one gallon size? I would like to buy it in five gallon containers.

 

[daman1]

Has anyone found Rotella 5W40 synthetic in anything other than quart or one gallon size? I would like to buy it in five gallon containers.

try a search for a distributor in your area. I've never seen them anywhere in 5 gal.


- National Shell Distributor Directory

 

[WM75Guy]

Here is the NH manual recommendations. Notice that new tractors are shipped with 10W30.

 

[jonyyuma]

I think I would be a little suspicious of a diesel oil that stayed clear rather than black. Diesel oils are high in detergents so they can keep the carbon cleaned from diesel engines. IF the oil stays clear, it is not doing a good job of cleaning the engine. The carbon is still being produced regardless of the oil used. I have never seen a diesel oil that wasnt black after a few hours of running it and the black color doesnt hurt a thing, it is actually a good thing to see in your oil on a diesel

I completely agree with this idea. It only varies on the clearances of the cylinders and piston ring designs, plus cold weather operation affects combustion. Plus it doesn't take very long..Jy