Why are diesel engines more efficient?

Posted on 10/3/2018

A close up of a car engine with the hood open | J&H Automotive

Why are diesel engines more efficient? You know I didn't know the answer to this one, with as long as I have been married to a master certified tech who all he does is talk about cars - okay so I'll give him 85% of the time he's talking about cars - you would think this one would have crossed our conversation. I talked with Jason and asked him why...his response was one that you would expect he started to go on and on. I said I need simple, people are asking, plus after all these years I still don't understand when he starts getting technical on things, or maybe just glassing over. Simply it is because diesel fuel has 30% more energy than gasoline, which makes it more efficient. If you would like more of the technicalities I can get those for you too. 



Happy Adventures


Heather

By jhautoinc March 17, 2026
Stopping is as important if not more important than starting
By jhautoinc March 13, 2026
Coolant is a vital fluid
By jhautoinc March 10, 2026
Catastrophic damage is not normal
By jhautoinc March 4, 2026
A water pump is a vital component
By jhautoinc February 28, 2026
A little maintenance can prevent a big problem
By jhautoinc February 25, 2026
That growling noise is something to watch for.
By jhautoinc February 20, 2026
They can cause a lot of damage
By jhautoinc February 17, 2026
That streaking can lead to bigger problems
By jhautoinc February 12, 2026
That light is important.
By jhautoinc February 3, 2026
You want this to work properly.