Why does my diesel blow blue smoke?

Posted on 1/10/2019

A snowy forest with a fence in the foreground | J&H Automotive

If you're diesel is blowing blue smoke it typically means it's either burning oil when it shouldn't be or it's getting to much fuel in the engine and that isn't being used. Either of these issues can cause poor fuel mileage and your engine to not run as it should. 



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Heather

By jhautoinc November 8, 2025
Is it age or an issue?
By jhautoinc November 4, 2025
It may not be your transmission...
By jhautoinc October 31, 2025
That growling noise is a warning
By jhautoinc October 28, 2025
Give yourself some extra time.
By jhautoinc October 24, 2025
It's that time of year.
By jhautoinc October 21, 2025
This will save your fuel system.
By jhautoinc October 17, 2025
It's time to upgrade that system
By jhautoinc October 7, 2025
It's more common than you think.
By jhautoinc October 3, 2025
It could be something simple
By jhautoinc September 30, 2025
You've got questions, we've got answers