Rotella T Synthetic, 5w40 5070 mi, 2003 Deville

[mcrn]

Originally Posted By: calvin1
You'll never find a 10w30 HDEO on the shelf in Florida. It's seasonal even here in Chicago. You'd have to special order it but I don't think that really makes sense in your case.




Im in Florida. Found some two weeks ago at WM.

 

[Gator]

After viewing these 2 used oil analysis I am not sure that in this application the T-6 will go 10,000 miles, the TBN is down to 3.5 at 5,000. I had been thinking that T-6 would go 10,000 easy in a gas burner.

 

[Gator]

any thoughts on the tbn of this oil going 10,000 miles.

 

[WishIhadatruck]

Originally Posted By: Gator
any thoughts on the tbn of this oil going 10,000 miles.


If it doesn't drop so fast in the later miles it might be fine. I have been using PP in my Grand Prix and it seems to drop fairly slowly over 5k miles. Here are 3 different OCI's where I got a TBN. As I go farther and farther on each OCI the TBN isn't dropping off that fast. The only way to know how the T6 will do is to try it. It will likely be fine depending on the driving conditions and the engine.

Code:
2/28/08 5.1k miles TBN=3.9

11/11/09 7.4k miles TBN=3.4

4/19/09 9.8k miles TBN=3.1