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Technical Support / Re: Renewable Diesel Use
« Last post by Zeb Severson on November 09, 2025, 02:02:23 AM »I've been aware of the issues which have created a stigma around biodiesel, legitimate or not.
After going deeper into R99, renewable (specifically according to Neste and Propel's HPD SDS) has been wonderful in my coach and I like knowing there is less particulate to create soot. There is only one place I can easily get Propel's HPD (in Hemet) otherwise I will use Shell or local fleet. I have significantly less black smoke and it runs smoother and seems to have a little more power. I do use Optilube XPD as well.
You can find HPD on Propel's website and app. Neste isn't easily available at the pump in SoCal.
For anyone on the edge of passing the CA Clean Truck emissions I would strongly recommend running R99 before having the certification test performed.
After going deeper into R99, renewable (specifically according to Neste and Propel's HPD SDS) has been wonderful in my coach and I like knowing there is less particulate to create soot. There is only one place I can easily get Propel's HPD (in Hemet) otherwise I will use Shell or local fleet. I have significantly less black smoke and it runs smoother and seems to have a little more power. I do use Optilube XPD as well.
You can find HPD on Propel's website and app. Neste isn't easily available at the pump in SoCal.
For anyone on the edge of passing the CA Clean Truck emissions I would strongly recommend running R99 before having the certification test performed.

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