Engine braking on diesel vs petrol

Hey Jono, don't you mean GO HOME THE SURF!?? hehehe, just kidding. Jonos rite, mate, the gering of a vehicle will have alot to do with its engine braking, its not just to do with the motor, although diesels do have better engine braking out of the box, but you can always do with a lower low range and thats the reason for those rockhopper gearsets that reduce low range gearing to enable incredibly slow crawling speeds for rocks and steep stuff. The give even a moderately modified vehicle greatly enhanced offroad ability, because you can tackle obstacles at a much slower speed, but you probably already knew that.
Tristjo.

GO HOME THE SURF!!!!! I would slap the silly out of you if i could be bothered getting off my arse, hehehehe.

Funny you should say that.....a new truck is on its way, so if anyone wants a surf with bugger all k's on the clock then get in touch with me on dix@iinet.net.auCheers, Jono.

Sorry bout the pic, another one is on its way!!! GO THE SURF!!!!

Not necessarily. The air that was compressed during the compression stroke now acts to push the piston down again, thereby cancelling out most of the effect of the higher compression.

The nett result is not much more engine braking than on a petrol motor. Gearing would have a greater effect than whether the motor is petrol or diesel.

As I said in another thread, I've owned both petrol and diesel versions of the same car and have not noticed a great deal of difference in engine braking between them, and this is with 23:1 compression on the diesel.

Stephen.

I also have had both a 4.5lt cruiser and my current 4.2 diesel and there is no question which I would rely on more for its engine braking capabilities. As soon as you are in low range diesels rule IMHO.
Cheers RobCairns Offroad Training & Tours

totally agree with rob. Col

Yep
Ditto. The Diesel is better
(Apologies to the Petrol heads!!!)