Is it better to drain oil hot or cold

Oil viscosity is thinner when its hot so it drains more quickly and completely out. Many people have said drain the oil when hot because it flows better.

I also measure what was taken out as this makes the refill much easier the same amount unlike oil in the crankcase does not always drain out so that is why I measure before replacing.

Is it better to drain oil hot or cold. Most oil experts say its better to drain the oil when its hot instead of when its cold for several reasons. Oil viscosity is thinner when its hot so it drains more quickly and completely out. This provides better engine lubrication on a cold start because the lower viscosity flows better and faster.

Many people have said drain the oil when hot because it flows better. I was taught to drain hot oil because contaminants and particles are still suspended while the oil is hot. If your oil is good quality and is not used that long it may be doesnt matter whether you drain cold or hot.

However if you know that the oil turn like molasseshoney during cold then it is better to start then engine drive it for 15 minutes and then drain it. The hot vs cold oil drain debate is an extensive one on the interweb but one of the main reasons always given for a hot drain is that its less viscous and therefore flows out better. But when the oil is cold its more viscous its thicker so it drains out more slowly.

And even if youre willing to wait longer for it to drain out its likely that a bit more oil will remain coated on the inside walls of the engine when youre done. Not a lot more than if the oil was warm but a little more. Think of cold oil like honey or molasses.

Not something you want to wait for 5 quarts of to drain out. Weve found that changing your oil when the engine is warm or shortly after a short drive is best. Ideally a hot engine will allow the oil to flow out the quickest and easiest but it is also the most dangerous time to drain the oil.

Engine oil can get up to 200F Degrees and can burn or scold you if it. Warmer oil will probably flow better so more oil will probably drain out when hotwarm. I would say the better point is to run the engine a bit to help circulate oil around and suspend the debris.

It helps you get rid of more junk when you drain the oil. I just drain my engine cold. 10W30 was most common but a lot of folks used 20W40 in warmer climates.

These oils drain better cold but still might be somewhat thick. Now most cars use 5W oils and they are very liquid at moderate temps. In the middle of a Vermont winter perhaps changing the oil when warm.

You should check your engine oil when its cold. You can also check it when its warm but it must be 15 minutes after the engine was running last time. This is mainly because it takes some time for the oil to pour down into the oil pan.

It is also better to measure the oil level when it is cold because of safety factors. Engine oil can reach temperatures of 250 Fahrenheit or 120 degrees Celcius. Draining Engine Oil This is the process where a plug is removed that the oil drains out the bottom.

Extracting Engine Oil This is where a device is used to suck the oil out. For this discussion lets assume we are pulling oil out through the dip stick funnel. When most folks think of an oil change they think of draining the oil.

I was taught that when changing the oil it is best to let your truck sit and let the engine cool so that all the oil drains down into the pan before you drain it out. But I recently read online that you should let the engine run for about five minutes so that the oil heats up and thins out right before you start an oil change. Which way is best.

Oil should be warm for a change especially gear oil. Those are of a higher viscosity and flow very bad when cold. Even if someone tells stories about lifetime filling for gear boxes it pays to change the oil from time to time say every 50000 miles.

In general about two-thirds of your engines oil will drain easier if the engine itself is hot. You should avoid dripping mud water however because a hot engine can easily turn this into scalding water. If youre worried about safety you can always play it safedraining the engines oil while its cold.

No problem doing it cold but better to do it hot so the oil flows easier. Proper tools will help and so will experience. Proper tools will help and so will experience.

Ive been burned a lot too but thats because Im not very adept and have worked in quick lube environments where the customer is in the waiting room after coming off the highway and I did not have the luxury of any cool-down time. I let mine drain overnight so it really make no difference to me and I have done it hot and cold cold is slightly easier to work with. I also measure what was taken out as this makes the refill much easier the same amount unlike oil in the crankcase does not always drain out so that is why I measure before replacing.

In cold conditions its a good idea to warm the oil before using it. Either put it in the airing cupboard overnight or put the bottles into a bucket with hot water. It really doesnt matter but yes a hot engine will drain quicker.

If you let it drain longer while cold just as much comes out. Leaving it to drain over night is the only way to get most of it out. Draining it on a stand rather than on a kickstand helps too.

Oil Change Hot or Cold. Probably wont make the slightest difference in engine longevity terms if the drained oil is hot or cold. You could leave the sump plug out for a year and still not drain all of the oil out.

Theres going to be at least half a litre of oil trapped in undrainable places. The hot oil infusion method is quick and relatively painless and the cold infusion method which takes 6-8 weeks. I have been taught that the cold infusion method is more medicinally beneficial but after working with both cold and hot infused oils I find each method has its own pros and cons.

The reason for draining oil when its hot was so all the impurities and contaminants that were suspended in the oil would be drained out of the engine. Speed was just a side benefit. Sure you can drain the oil when its cold and yes it does take longer.

Refrain from using hot water when washing these items as the hot water can push the stain deeper into the fabric instead of lifting it out like you want. A regular load of laundry can be washed in either cold or warm water. Whites should be washed in cold water.

And any sheets blanket and towels can be cleaned in hot.