I've heard those that own larger 6 cylinder JD LP tractors mention how thirsty the engines are on fuel compared to gasoline and diesel. That's one reason alone that I have been mainly interested in the smaller LP tractors. It wasn't until I started looking at the Nebraska tractor test data on 2 cylinder tractors that I noticed the difference in fuel burned per hour under load with LP tractors. Pretty interesting to also read about the 2 cylinder diesels holding a 27 year record for burning less fuel than other tractors. I can clearly understand the reason the diesels burn less than gas and LP. But am curious as to the technical reason/s behind a 2 cylinder LP engine burning more than gasoline. I've read all about the gas condensing to a liquid when under pressure. Also noticed that the Nebraska tests show that the 70 LP pulled more weight than the gasoline and all fuel models. Wasn't very far behind the diesel.
Is the fact that LP gas has a higher octane rating the main reason for higher fuel consumption compared with the gasoline 2 cylinders? Just curious if there was more to it.
When I used LP forklifts a lot, it did appear as though they used more fuel than others.
Are there any LP experts on here?