unnecessary idleing

I don't have a diesel but I drive one at work. I can bring air pressure up from 0-120 in less than 3 minutes and we take off with engines cold. I don't see a warm up for that long. we are also not aloud to idle for more than five minutes or we will be written up for excessive idle. The good old GPS system warns them and it works pretty good, they got me for excessive idle while sitting at a stop light because of so much traffic it took me 3 lights to get through the intersection. Also there is a Calif. state law now restricting excessive idle. Some people are just down right rude.

Dog Trainer wrote:

et2 wrote:
Just picked up our first diesel class A this week. He was probably waiting for the engine temp to come up. I sat today when leaving and it took a good deal of time after being cold for 6 days. I wouldn't move a expensive rig like that until the needle started moving either.
Besides the newer diesel engines burn with practically no smell.

I don't get that. Why does anyone need to sit and wait for the temp to come up. Air yes Temp no. Pull out at idle and get some temp while leaving the park. But no need to wait for temp to come up nor does any Diesel Mfg. recommend it. You have much to learn about the Diesel engine.

Funny, it states right in the cummins engine book to wait for the temp to start to come up. Unless you plan plan on paying for the repair to my engine your claims are baseless. I wait until the needle begins to rise, a sign the engine coming up to operating temperature. I've done this with the last 6 diesels I've owned. Always let them run in the drive before wheeling away. Not to mentioned, there is a cool down period before shut down as well.

Since you are a diesel expert you do realize a Diesel engine operates best at operating temperature, cold not so much. Have at it, break yours all you want.

There is absolutely no benefit to any Engine Diesel or Gas to be allowed to idle before setting off.Obviously it takes a few minutes to air up a vehicle with Air Brakes.
By the time You reach the Highway the Rig will be warm enough to take up to the Speed Limit!

Honestly. IF it takes 20 min to get your MH's air to pressure. You have an AIR LEAK. Get it checked.

Same if it takes 20 min to get the temp up. Your thermostat is broken.

Crank up, Let it get to psi, and ease out of the CG. By the time you get to the CG exit. You'll have all the heat you want.

jjj wrote:
I don't have a diesel but I drive one at work. I can bring air pressure up from 0-120 in less than 3 minutes and we take off with engines cold. I don't see a warm up for that long. we are also not aloud to idle for more than five minutes or we will be written up for excessive idle. The good old GPS system warns them and it works pretty good, they got me for excessive idle while sitting at a stop light because of so much traffic it took me 3 lights to get through the intersection. Also there is a Calif. state law now restricting excessive idle. Some people are just down right rude.

I agree.......

Terryallan wrote:
Honestly. IF it takes 20 min to get your MH's air to pressure. You have an AIR LEAK. Get it checked.

Same if it takes 20 min to get the temp up. Your thermostat is broken.

Crank up, Let it get to psi, and ease out of the CG. By the time you get to the CG exit. You'll have all the heat you want.

Correct...........

Deleted by poster. Quoted wrong comment...

jjj wrote:
I don't have a diesel but I drive one at work. I can bring air pressure up from 0-120 in less than 3 minutes and we take off with engines cold. I don't see a warm up for that long. we are also not aloud to idle for more than five minutes or we will be written up for excessive idle. The good old GPS system warns them and it works pretty good, they got me for excessive idle while sitting at a stop light because of so much traffic it took me 3 lights to get through the intersection. Also there is a Calif. state law now restricting excessive idle. Some people are just down right rude.

UPS?

I guess there are going to be a lot of ruined diesel motors in California:

FACTS ABOUT

California’s Commercial Vehicle Idling Regulations

Idling diesel trucks and buses create toxic air pollution, contribute to global warming, and waste costly fuel – and in some cases, the operator may be breaking the law. Find out how you can help keep emissions in check so we can all breathe easier.

Which vehicles are covered?

Heavy-duty diesel vehicles with a Gross Vehicle Weight Rating (GVWR) of 10,000 lbs. or heavier.

How long can I idle?

Idling for more than 5 minutes is prohibited within California’s borders. While at a school, the driver must shut down the engine immediately upon arrival and leave within 30 seconds of starting the engine.

http://www.arb.ca.gov/msprog/truck-idling/factsheet.pdf

From my 2013 F350 Diesel Supplement Manual, "To prolong engine life (especially after extended high speed, high ambient temperature, or high GVW/GCW operation, such as heavy loads and/or heavy trailers), it is recommended that a hot engine be idled for 3-5 minutes. This allows the turbocharged engine to cool down."

There is nothing specific about the starting procedure except for in cold weather. However, since we are in the middle of Summer, it's a moot point.

However, I did find this section interesting: "Idling in cold weather does not heat the engine to its normal operating temperature. Long periods of idling, especially in cold weather, can cause a buildup of deposits which can cause engine damage."