[doctorno]

haven't had a V8 in a while...if i park it at work in say, 20-degree temps and then jump in at 530pm to head home, what is the appropriate warm-up strategy?

 

[vvv90]

I've always been told to at least wait until the coolant is at about room temperature at least, but most temp gauges don't go that low. Then drive it "normal" until it gets up to operating temperature before any WOT or hard driving.

Typically just wait 5-10 minutes before driving away. No big deal. Sorry for lack of scientific details.

 

[doctorno]

I've always been told to at least wait until the coolant is at about room temperature at least, but most temp gauges don't go that low. Then drive it "normal" until it gets up to operating temperature before any WOT or hard driving.

Typically just wait 5-10 minutes before driving away. No big deal. Sorry for lack of scientific details.

5-10 minutes! yikes! i can do that, but with the turbo audi, the manual says just drive it immediately (no idling!) and avoid WOT and building turbo boost until in normal oil temp range.

woah, 5-10 minutes....doh.

 

[GoBlue]

5-10 minutes! yikes! i can do that, but with the turbo audi, the manual says just drive it immediately (no idling!) and avoid WOT and building turbo boost until in normal oil temp range.

woah, 5-10 minutes....doh.

I think what VVV is referring to is the time it takes to get the heated seat warmed up. :silly:

 

[330toSRT8]

Not an exact answer to your question, but the previous generation M5 had a moving rev-limiter that was set to 4000 rpm when after a cold start. It would move higher as the engine warmed up. That sounds to me like the engineers determined it was fine to drive cold as long as it was under 4k rpm. I realize this is an entirely different engine.
I keep my cars under 3k rpm until the engine is fully warmed up and have not experienced any problems. But I don't have a Hemi yet.

 

[vvv90]

5-10 minutes! yikes! i can do that, but with the turbo audi, the manual says just drive it immediately (no idling!) and avoid WOT and building turbo boost until in normal oil temp range.

woah, 5-10 minutes....doh.

There's no specification for it I don't believe, but I don't care what car or what manufacturer tells you. You should let ANY car warm up by idling a little bit before driving. But that's just my opinion and the opinion of my ASE friend and what he's been told.

 

[dacbeth]

I had always heard to wait about a minute before driving then drive slowly (normally) until warm.

A quick internet search confirmed this thought at the sites at which it was discussed.

 

[jjs]

Some interesting pros and cons found when Google-ing...

http://groups.google.com/group/alt....663ea1542234f00?sa=X&oi=groupsr&start=0&num=3

 

[NautcaSprt6]

I think what VVV is referring to is the time it takes to get the heated seat warmed up. :silly:

I dont know about your heated seats, but my seats get hot in less than a minute, no BS.
But I warm my car up until I see the temp gauge start moving, after it starts moving, i start driving, but slowly and no WOT til the Temp gauge shows half.

 

[lexball50]

Wow, I just jump right in and pull off after I get my CD or radio together. That usally takes about 2 minutes, and i'm in Chicago. Maybe I will start letting her warm up a little bit.

 

[Scarbs]

Yea let her warm up Lex. It's not the best thing to do around here.

Side note some of the guys were asking about you Saturday.

 

[RobertV]

Funny, I have always been told about the 10sec rule.

Every tech I have talked to said 10 seconds is good. You want the oil pressure to come up enough for the upper sections on the motor to be oiled (cams, valve train, etc.) and then you should drive off.
I had the beast idling in the garage for a minute the other morning and I could tell that it was running very rich. I'd much rather prefer to get her going and off the super rich mixture on cold startup.
I check the oil temp before I WOT or hammer on the beast.
With the synthetic running in our motors, we should be in decent shape compared to the straight dyno juice we used to run.
Just my $.02

 

[LegalShield]

Conventional oil - about 2-4 min warm up
Syn oil - about 1-2 min warm up