Blowby in trucks… Does it mean a rebuild?

My truck has blowby and Cummins says it needs a rebuild…

This is a very common complaint Jimmy and I hear from truckies. Their engines are performing well, but the blowby is bad. Wear around piston rings, grooves and liners will certainly account for excessive crankcase pressure which is characterized by...

“I filled my common rail diesel with petrol! What can I do now?”

Don’t laugh! A diesel filled with petrol is more common than you think... Especially if you’re refueling at an unfamiliar outlet, and are in a hurry. (Admittedly, I’ve done it myself!) It’s true that common rail diesel engines (CRD’s) have incredibly fine tolerances, operate at extremely high pressure, and are...