Quote:
Originally Posted by Diesel_Dave
I can't image any way around it. Regen cycles require exhaust heat--that means the fuel energy goes into exhaust heat rather than the drivetrain.
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Dave,
Do you think Mazda is mostly treating the regen cycle like that of the pre DEF (EPA 07) trucks prior to EPA 10 (just using rich fuel and heat since they do not use DEF)?
I wonder if regen cycle is included in EPA test cycle numbers for FE or not.
I know it was a big deal when Detroit Diesel got their FE back up in 2010 and 2013, after the EPA 07 hit they took for having to run high temp regens.