The new DP's may run on gasoline

skipnchar wrote:
Diesel engines have always ran perfectly well on gasoline but gasoline didn't have the necessary lubricants found in diesel fuel. This is likely still true so SOME sort of additive would still be required.

NOT!!

hone eagle wrote:

mccsix wrote:
Talking about diesel exhaust smell being a thing of the past. If you ever park around a DP that has the EPA compliant DEF system in it you wont smell a thing, absolutely no exhaust odor at all and only h2o dripping out of the pipe.

I always notice a very strong bleach smell.

To me the new diesels smell like pizza.

I remember the multi-fuel diesels in the army, they smoked real bad, and did not have much power. Yea, they would run on anything, but were only useful when running diesel. I think the reason they went away, was the required up-keep.

You will not see a diesel engine burning gasoline. You would burn the engine up. Who ever is putting that kind of information out does not know a thing about how diesel engines get lubricated.

BillMFl wrote:
Well I made the mistake of putting half a tank of gas in my F350 diesel. Got back on I75 and the truck started running VERY rough. Got of onto secondary roads and drove about 100 miles home. Next morning went to my Ford dealer and they laughed and said welcome to the club. Seems lots of folks make this mistake. They drained the fuel tank and refilled with diesel and the truck ran like new. No damage. It ran rough and smelled really bad from the mixture.

I just bought a VW TDI Jetta and I just know I'm going to put gas in the tank one of these days. I filled it up just yesterday and grabbed the gas nozzle first and this is only the third time I've filled it up.

I think the trend is in the other direction: We are more likely to be relying on biodiesel in 20 years than fossil fuel.

mccsix wrote:
Talking about diesel exhaust smell being a thing of the past. If you ever park around a DP that has the EPA compliant DEF system in it you wont smell a thing, absolutely no exhaust odor at all and only h2o dripping out of the pipe.

I always notice a very strong bleach smell.

I suspect there will be more problem for the owners of DP than for the engines. Can you just hear the reply when asked what kind of MH do you have, and the reply, a GP? :B

Talking about diesel exhaust smell being a thing of the past. If you ever park around a DP that has the EPA compliant DEF system in it you wont smell a thing, absolutely no exhaust odor at all and only h2o dripping out of the pipe.

rgatijnet1 wrote:
Is there a huge difference between the electric fuel injection used in most current gasoline engines and the mechanical injection pumps used in a diesel?
I would guess that with the new computer controlled engines that there are more similarities than there are differences.

Yes and no. It really depends on the engine. Up until very recently, a gas fuel injected engine sprayed the fuel at the top of the intake valve, which cooled the valve, heated the gas and mixed with air in preparation to go into the cylinder. Some modern gas engines have gone to direct injection, meaning fuel is sprayed directly into the cylinder. The purpose of this is so the fuel can be timed to prevent detonation. They don't put the fuel in till the last (micro)second, so the fuel does not have time to heat up and ignite prematurely. This allows for higher compression ratios, which helps efficiency. Its only the latest generation of designs that use this feature. Obviously to do direct injection requires much higher pressure and a much better injector. In contrast diesel has been direct injection with timed injectors since the 80s.

You used the word "most" when referring to gas engines. Don't think we are quite up to most using direct injection yet.