Quote:
Originally Posted by EcoVan
but it does make sense...
The only thing I'd worry about with insulating the exhaust is the regen cycle. The exhaust is supposed to get really hot then.
The 4 banger diesel just makes so much sense in vehicles for this use. Lots cheaper than the 6 cyclinder diesel to make, but all the torque you need.
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The idea is that it will burn less fuel to get hot enough to regen if it's insulated. It will also stay hot for longer after the regen takes place burning up more of the particulate matter and thus help keep the DPF cleaner. It would also keep the catalytic converter closer to optimal temperatures and help that not get clogged up as diesels have cooler exhaust temperatures than gassers.
Starting at 15:08 on this video: