JASO DH-1 oil for non-emissions diesel tractor

[Fabulous50s]

My new Yanmar tractor specifies an oil meeting the JASO DH-1 spec. T6, my go to oil meets the DH-2 standard which is low ash for diesel engines with DPF. The DH-1 us a higg ash formula for non DPF engines.

What oils are available in the US which meet the DH-1? I've looked for a bit, and coming up empty.

 

[JRed]

It's a diesel tractor engine without DPF. Put whatever diesel oil you want in it and use it like a tractor. Rotella 15w40, T6 5w40, etc. etc. No need to overthink it.

 

[userfriendly]

DH-1 2001
DH-2 2005

DH-2 is backwards compatable with HD-1. For example Petro-Canada Duron oils that pass DH-2 also pass DH-1, but not the other way around.

www.api.org www.yanmar.com

 

[High Performance Lubricants]

My new Yanmar tractor specifies an oil meeting the JASO DH-1 spec. T6, my go to oil meets the DH-2 standard which is low ash for diesel engines with DPF. The DH-1 us a higg ash formula for non DPF engines.

What oils are available in the US which meet the DH-1? I've looked for a bit, and coming up empty.

If you can still locate a legitimate CI4 plus/SL pre 2008 it will have a very likely higher additive concentration than what is currently on the shelf.

That would be appropriate for your engine. Just because you can use a lower additized oil currently offered does not mean that it is the best option

 

[Fabulous50s]

If you can still locate a legitimate CI4 plus/SL pre 2008 it will have a very likely higher additive concentration than what is currently on the shelf.

That would be appropriate for your engine. Just because you can use a lower additized oil currently offered does not mean that it is the best option

Thank you, those are my thoughts exactly

 

[Kennedy01]

Thank you, those are my thoughts exactly

Swepco 306 is a CI4+/SL HDEO, but it is quite expensive. I bought my supply from Pelican Parts. Lucas oil also offers a CI4+/SL oil.