How many of you warm your trucks up in the morning for longer than a couple of minutes? How many of you just fire it up and leave? I usually let mine idle for around 5 min. or so. Lemme know.

 

I let mine warm up for about 5 minutes, never know when I"ll feel the urge to punch it. Never ever WOT with a cold engine!!!

 

The only problem with warming your truck in the driveway is the same reason the break in procedure wants you to vary the RPM. The pistons get oiled by oil getting thrown off the crank. At every change in RPM the oil gets thown in a different direction. It is possible for some pistons to get starved for oil if you leave the motor at one speed. Most normal ware to a motor happens at startup and warmup. I drive my truck but never go over about 2000 RPM untill I get fell temp plus a mile or so.

That being said... We warm the the motor of the race car to about 170 deg then we cool it back down. We launch the car at 70 deg water temp. All for cool ports.

Andy

 

No warm up for me,but i never get on it until the needle is at least half way to running temp.

 

I crank mine up and let it run while I put my work boots on. I have a chair in the garage right next to the front of the truck, so while I put my boots on I get to listen closely to any noises that may be coming from the truck. It usually runs for 3-4 minutes before I leave, and I am really easy on her until normal operating temp is reached (about 5-6 miles down the road).

 

What awhittle said........most definitely!

You are possibly hurting your eng. by letting it idle at start-up. If your eng. is 'in-tune'(normal). then it will not stumble or falter when driven--slowly immediately after start-up. Driveing moderately for the first 5-10 minutes warms up everything(tires, brakes, trans., shocks, rear end, etc.) at the same time while ensuring that the eng. comes up to its operating temp. in the shortest amount of time. Sitting there idling, the cyl. walls can be over-washed by fuel--and other 'bad' things can happen. Modern f/i eng. don't need the idling time that older engs. required. I turn the overdrive 'off' until my eng. reaches its operating temp so that it does not 'lug'.

Btw, using a synthetic oil protects the vital parts and bushings at start-up because even though it is more 'slippery', it clings to the internal parts much longer than dino oil does so you get no 'dry' start-ups.

Dan

 

I usually grab a smoke while it's idling 1st thing in the morning.
About 5 minutes or so. If it's cold, but not the first start of the day, I will just let it come off the fast idle before I go.

I've been told that you should at least let it come off fast idle before you go because of the time for the O2's/Cat's/sensors to warm up.

 

I wait until the RPM's drop below 1K and then put her in drive and drive easy until it's warm.

 

I have also been told NOT to let any vehicle sit and run (warm up) on initial startup. I wish i could explain it the way it was explained to me... I think 'awhittle' and 'lightningrod' said it correctly.
In all reality, it's probably not going to make a HUGE difference either way, but every little bit helps.

 

I start the truck, then use the next 30-odd seconds to find a decent station or load a CD. Then I pull away slowly, driving like a granny for the first few blocks. Once the needle moves off "C" I drive normally.

 

i believe in letting the truck warm up completely and then still driving easy for a few miles as well,now i was told that because of the forged pistons you should let the truck warm up completely