idaho said:
If your oil is taking that long to warm up maybe you should consider a different viscosity, it doesn't get that cold here in the winter, normally not to far below -20 but a lot of people, even with trucks, swich to a 5-30 for the winter. it should flow better and quicker. your tranny doesn't do anything when it's not in gear so saying it works better is a completely different thing, I agree that putting a load on the vehicle first thing is a lot better for it.
Normal driving conditions according to the manufactuers is starting a vehicle and dirving at 65 or above for ten minutes or so and then stopping and instantly shutting it of; no idle time.
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Well, I didn't say it took that long for my oil to warm up. In my previous posts I have said that I sit in the car or truck for about 3-5 minutes SHIFTING the tranny from drive to netural to reverse a few times. In this time the engine and tranny are fully lubricated before I take off. Yup! I know its a PITA but I do it.
When you use multi viscosity oil (5-20 10-30 ETC) the oil starts off thin so the engine will start easier and the oil will flow faster to all the engine parts, then it thickens to provide better lubricating. Taking off with the oil in its thinner first stage is not what is best for a engine.
As far as me running the motor for up to 30 minutes, thats just for heat in the winter, heating up the interior, getting windows good and clear and allowing enough time for the rear defrosters and heated mirrors (some of mine have that) to clear up the glass. And NO! I don't sit in it for the whole 10-30 minutes waiting for everything to warm up. LOL!
As for that manufacturers recomendation, sorry but I just don't buy it. Most people do not even drive on the highway to get up to 65mph.
As far as i'm concerned thats the worse thing you can do to a engine, start and go up to 65mph right away. Besides most highways are not even close enough to do that. Some freeways are miles away so how could that even be done?
Ah! Just my view and experience.