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Old 06-30-2014, 08:35 AM   #36
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Quote:
Originally Posted by SixBanger View Post
I get in and if it's cold as hell outside I'll sit in there and drink my coffee but I live in the city so leaving a nice car with the doors unlocked and the engine running is a recipe for riding a bike to work that morning. Thousands of cars are stolen just like that in DC every year. Lol I'll take a little engine wear if that's what it takes.
Your in DC? I'll be in Fairfax in the middle of August. Just had orientation at GMU last week.
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Old 06-30-2014, 09:33 AM   #37
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Well, no one is going to warm up the trans sitting idling in the drive, unless you leave it for 30 minutes for some engine heat to creep back to the trans. The only thing that'll deal with trans notchiness is using the trans.
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Old 06-30-2014, 11:46 AM   #38
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it depends on how late I am.
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Old 07-01-2014, 02:16 AM   #39
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This is like the dumbest question ive heard

Of course you let the car warm up
Why wouldn't You. If you mean till the gauge hits the mid level, Not necessarily.

But at least till the idle throttles down and then wait at least a few mins before you hit it.
Basic car stuff 101

Whats the next question ?
Should i change my oil ~~~



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Old 07-01-2014, 09:00 AM   #40
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Your in DC? I'll be in Fairfax in the middle of August. Just had orientation at GMU last week.

Actually I am in Ocean City for the summer. Lol I move back to DC in the fall.
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Old 07-01-2014, 10:31 AM   #41
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Actually I am in Ocean City for the summer. Lol I move back to DC in the fall.
Nice, we'll probably see each other on the road.
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Old 07-01-2014, 11:28 AM   #42
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In earlier times, with single viscosity oil, the oil had to be brought up to temperature slowly due to lack of lubrication while the oil was thick. However, it was best to only allow less than a minute to warm up, because the carburetor would wash the cylinders with raw gas. This would cause long term issues. The normal practice with a sports car was to start it, and when the oil pressure was up and steady, slowly start off while watching the gauges. After the oil had warmed up to operating temp, it was assumed that the transmission and differential were also at operating temp. In fact, it could get cold enough in some areas that if the grease did not warm up enough, suspension joints could break.

With fuel injection, the problems with cylinder washing is no longer an issue, and it is generally safe to leave the engine running for several minutes. It is not necessary to get the engine oil up to temperature with multi-viscosity oils., but being careful to warm up the rest of the car before putting it through any demanding driving is still valid.
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Old 07-08-2014, 02:50 AM   #43
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Hmmm.....I usually let the idle drop but a couple of minutes later I hit the on-ramp near my house and roll into it in 2nd gear. The car is surely not "warmed up" at this point but I really like my on-ramp fun.
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Old 07-08-2014, 03:20 AM   #44
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As 90% of engine wear is during the first 20 minutes of a cold start I ALWAYS LET IT WARM UP. Keep in mind oil becomes much thicker like syrup when its cold and it takes longer for the oil pump to move it to the top end of the motor, also the rings and bearing are cold and shrink very little, but enough that you should take the extra 2 minutes and let her idle if it's under 40 degrees. Just my op.
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Old 07-08-2014, 03:25 AM   #45
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Quote:
Originally Posted by Bear376 View Post
In earlier times, with single viscosity oil, the oil had to be brought up to temperature slowly due to lack of lubrication while the oil was thick. However, it was best to only allow less than a minute to warm up, because the carburetor would wash the cylinders with raw gas. This would cause long term issues. The normal practice with a sports car was to start it, and when the oil pressure was up and steady, slowly start off while watching the gauges. After the oil had warmed up to operating temp, it was assumed that the transmission and differential were also at operating temp. In fact, it could get cold enough in some areas that if the grease did not warm up enough, suspension joints could break.

With fuel injection, the problems with cylinder washing is no longer an issue, and it is generally safe to leave the engine running for several minutes. It is not necessary to get the engine oil up to temperature with multi-viscosity oils., but being careful to warm up the rest of the car before putting it through any demanding driving is still valid.
With newer direct injected motors, belive it or not there haveing the very same issue with washing down the cylinder wlls with raw fuel. Volkswagen has had that problem with there newer tsi motors and during a cold start the computer dumps a absurd amount of fuel in to the cylinders and a good amount of it gets by the rings and contaminates the oil with fuel. No no not with my Ford, I'll keep my port fuel injection.
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