• Yes. Higher RPMs cause more heat, which, in turn, makes the engine warm up faster. However, letting your vehicle warm up at idle speed is far better for the engine. Remember what happens to metal when it's temperature is changed rapidly?
  • No. Give it a chance to circulate the oil before you rev the engine. You can do damage to the innards of your motor if you rev it up right away. Most newer cars warm up and circulate the oil pretty quickly. Just keep an eye on your oil guage.
  • No not really, when you "warm up" the car all you are really doing is allowing the oil to circulate and lubricate the pistons, bearings and other moving parts. You see the the oil is carried in the sump (this is a pit where oil is collected), at the bottom of the engine, and forced by a pump through a filter(sump filter) to the main bearings. From the main bearings, the oil passes through feed-holes into drilled passages in the crankshaft and on to the big-end bearings of the connecting rod. Revving is especially bad for your engine if you do it right after you start the car when the engine is cold and all the oil is still down in the oil pan. All those metal parts in an engine that move around aren't properly lubricated with oil. Repeated revving can damage your engine and it will cost you thousands of dollars to buy a new one.
  • Yes, but it defeats the purpose of warming up your car. You might as well just start driving. Don't rev' your engine.
  • Yes, but it is hard on the engine. Let it idle for 3-5 minutes when possible. Also, if you let it idle before turning on the heat, you will get WARM air on you versus cold, and the oil and other parts of the engine will be in be warmed up and ready to run...not unlike warming up before jogging. It's just alot more sensible and easy on the body.
  • Reving the engine when the car is cold is not healthy for your car. Its possible to damage your rings and score your pistons. Oil needs time to heat up depending on its viscocity. The oil in the oil pan depending on how clean it is can contain sludge. When you rev the engine your forcing that sludge through your oil pump. If you wait a minute or two after you start your car you will hear a change in the idle speed. In the warmer places your set to go. In the areas with ice and snow, always let your engine warm up a little before driving.
  • No, reving the engine when it's cold is very bad. The oil needs to warm up and circulate through your engine to lube up the moving parts. Reving will only cause the metal moving parts to grind against other metal moving parts with no oil. Oil doens't circulate very well when its cold. Just let your car idle for a few minutes or 15 mins if you want it warm inside.
  • My personal ritual with any vehicle i own is; ***Tune-up in the Fall, Check when the cars Thermostat was changed so it warms-up properly, oil Change, plugs changed and the wires inspected, tires checked and balanced, wipers replaced and Brakes Inspected, Snow Chains put in the trunk if you have snow, Blanket, food, water, flares and Check the Battery- three years old no matter what kind>>> REPLACE IT! Start the engine on a cold morning and let it Idle- Don't Rev-it-up, it wears the bottom main and rod brearings from lack of oil and tightness from the cold! try this Take a straw and freeze water in it, coat the frozen straw with cooking oil, then freeze it in a glass of water- try to remove it right out of the freezer, that is likely how your car feels when you go out and start it on a freezing temp day, thats why the fresh oil every winter, the car will start when you need it the most!
  • worse thing you can do to an engine. let warm up for 4 or 5 min. then drive at normal speeds, the engine will warm up faster under load than at idle. idling for long periods is also not good for engine or the env.
  • Revving does not warm the car faster. However on newer cars it will not harm the engine. 1998 cars and newer generally use 5W30 oil which is thinner and helps with cold starts. 1998 and newer cars were made to start and go.
  • Yes, but keep the revs in moderate to low levels till the engine gets warm. This allows the oil to circulate fully and with minimal wear. Reving TOO high will cause exessive wear.
  • yes it does but the oil is cold and the oil is the blood to an engine let the oil warm up then drive off
  • When you first start the car when it's cold it's best to let it idle for several minutes before shooting the gas to it so the oil can warm up and lubricate the engine. But to answer your question yes reving the engine will heat it up a little faster.

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