Thanks TSThe 15w-40/AME is their primary HD diesel oil for commercial or pickup truck, turbo diesels without DPF's - it's also excellent for marine onboards (gas & diesel).
The 10w-40/AMO is a high performance motor oil for gas engines requiring a thicker lube (like race motors with flat tappets) and for automotive, light duty diesels.
Either oil is fine for an older TDI, based on actual experience. The 15w-40 has marginally better high temp properties; the 10w-40 is marginally better in sub-freezing temps. The pour points, -44F and -47F respectively, are very close.
TS
TS,The 15w-40/AME is their primary HD diesel oil for commercial or pickup truck, turbo diesels without DPF's - it's also excellent for marine onboards (gas & diesel).
The 10w-40/AMO is a high performance motor oil for gas engines requiring a thicker lube (like race motors with flat tappets) and for automotive, light duty diesels.
Either oil is fine for an older TDI, based on actual experience. The 15w-40 has marginally better high temp properties; the 10w-40 is marginally better in sub-freezing temps. The pour points, -44F and -47F respectively, are very close.
TS
1. This *is* the Amsoil information thread for everyone.Thanks Tom
I have used the AME on a regular basis in the Duramax's and have been getting single digits @ 10K miles and low teens in the powerstroke engines. Just wondering any benefits with the AMO. AME is a couple bucks a Qt less.
Mr Crow, push your sales pitch, links, BS, etc, somewhere else. I buy Amsoil every month and do not need copies of the web info. Salesmen like you give Amsoil products a bad name.
I was just trying to inform you don't make it more than it is!Thanks Tom
I have used the AME on a regular basis in the Duramax's and have been getting single digits @ 10K miles and low teens in the powerstroke engines. Just wondering any benefits with the AMO. AME is a couple bucks a Qt less.
Mr Crow, push your sales pitch, links, BS, etc, somewhere else. I buy Amsoil every month and do not need copies of the web info. Salesmen like you give Amsoil products a bad name.
Mr Crow, push your sales pitch, links, BS, etc, somewhere else. I buy Amsoil every month and do not need copies of the web info. Salesmen like you give Amsoil products a bad name.
It's a 100 to 200 ppm drop (ZDDP) CI-4+ to CJ-4?Actually the ZDDP levels are pretty comparable in the Amsoil CI-4+ and CJ-4 oils. However the CJ-4 chemistry uses more Magnesium and less Calcium. Since the molecular weight of Mg is less than Ca, it generates less ash for a given TBN level....
TD
Agreed there. CJ-4 has proven to be outstanding.Yes, but the CJ-4 oil also has boron & moly. Wear protection seems pretty comparable. The 12 TBN oils should last a bit longer in service, however.
TS
Mile High,
For a cold climate, I'd stick with the DEO, 5w-40 in the Dmax and PD. If you lived in a warm to hot climate, the two Amsoil 15w-40's (AME & DME), have even better high temp stability than all the 5w-40's on the market (Amsoil, Delvac 1, Rotella T6, etc).
The 10w-40 is really not intended for HD diesels, despite the CI-4+ rating. I'd use AME/DME* or DEO instead.
*DME is the new CJ-4/SM rated, Amsoil 15w-40.
(Ted not Tom)
Mile High,
A 0w-30 and 5w-30 are normally interchangable. However, it's possible that the 5w-30 (or even more so a 10w-30), will have better high temp, thermal & shear stability than a 0w-30. Depending on the application - such as a DI gas engine turbo - this could make the 5w-30/10w-30 more desirable.
Make sense?
TS