My have things changed
Over 10 years ago when people posted their new truck HP figures people were coming back with posts like: "When is the HP madness going to stop." "This HP thing is out of of control, it's madness". "Wh...
Forum Discussion
ShinerBock wrote:
No it does not. Black smoke from a diesel is uburnt fuel(i.e. not enough air for the amount of fuel being added).
How to reduce black smoke in diesel engines
Older N/A diesels used to blow black smoke all the time because they did not have enough air to burn the amount of fuel being added. That changed with the introduction of turbochargers and they mainly only blow black smoke when the turbo is not spooled up or there is a fuel issue.
A leaner air fuel ratio with the same amount of fuel will create more power therefore less fuel is needed to create the same amount of power meaning it needs less fuel to do the same amount of work.
Must had a magic diesel then...unless accelerating hard or climbing a steep grade, no black smoke and we were towing at right around the trucks limits. Hard acceleration and grade climbing were a tiny percentage of miles, so really doesn't move the needle in terms of efficiency.
Or we simply were staying within the engines ratings and not pushing it outside it's design parameters.
