Forum Discussion
Mike_Poorman
Dec 27, 2019Explorer
theoldwizard1 wrote:starlord wrote:
...NOT supposed to run any bio of any percentage in the system (or so Ford tells me).
Never Ford diesels are certified for up B20.
Just checked the manual for my 2019 GMC Sierra 3500 HD and that
on page 47 of the 2019 Duramax Diesel Supplement they state
"Do not use a diesel blend containing more than 20% biodiesel by volume"
So it appears that B20 is acceptable.
I will stop by my local GMC dealer and check with a real person to make sure that the truck can actually run on B20 with out issues.
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