To change engine oil - HOT or COLD?

I always change my engine oil hot.
I have changed my Tundra's engine oil cold a week ago.

What are the plus and minuses of changing engine oil hot or cold?

Cold: oil flows slower so you need more time. At the same time, people say the heavier dirty oil, sitting at the bottom of the oil pan, comes out first.
Hot: faster oil change.

What do you think?

 

I prefer cold. After the truck sits for a while, all of the oil in the engine has drained down to the pan. When the engine is hot, some of the old oil in the upper part of the engine may not have enough time to drain down to the pan. So the new oil is diluted with some of the old. My dos pesos.

- JAMES

 

I always thought it was closer to lukewarm. Start up a cold engine for a few minutes then start draining.

 

Ideally cold, but sometimes the only time is when its been hot. Like it was said cold lets most of the oil in the engine flow down. IMO. It prob is negligible but still....

 

Changing cold makes total sense!

 

So is your name Otto or what lol
If so

First time I’ve heard the name in years other than when I’m getting hollered at

 

Only ever done it hot, drains better when hot. After driving let it sit 15 minutes then drain.

 

Honestly it makes almost no difference. Your filter will catch anything that's not supposed to be there, if it doesn't you've got bigger issues.

 

I do it while the engine is running, that way it pumps all the oil out.....

 

Ever seen the inside of a 4.0 oil pan? If you look closely, you'll see there is actually a ridge around where the drain plug goes which can allow heavy particles to catch and not leave. My theory is of you do it while it's warm, let idle for a few minutes and then drain, anything that is suspended in the oil will drain, versus letting the oil sit and settle collecting around the ridge of the plug bung.

Not sure what other oil pans look like on the other motors.

 

I’ve always done it warm. My trucks engine looks great after 300k internally... so obviously it’s not hurting it to do it warm... hell my corolla gets warm oil changes and it’s got ~680k on the engine.. still runs great...

I’d just do it warm. Like stated above the filter catches most any forgin material as long as your using a good filter.

 

That corolla, damn!

 

Side note, why doesnt our drain plugs have a magnetic tip like every vehicle i have owned before this

 

I only wish the odo didn’t stop at 299999 lol have to keep track with a notebook... it quit in 2011

 

You can get one aftermarket. But honestly if your doing your oil changes on time with decent filters the minuscule amount of metal that gets in the oil ends up in the oil filter. These motors wear well compaired to alot of other company’s engines

 

Shit my yukon always has a metal shred ball sticking to it

 

i do mine warm (like about 5 minutes of idling). After i pull the drain plug I go away for sometimes about an hour.
I like the 5L jugs of pennzoil platinum since its just the exact amount needed.Just pour it all in and its right on the full line.
I do have a gold plug drain plug.. after 5000 miles there is a very thin film on the magnet..
i just did a change this afternoon so snapped a pic

 

I like to get the engine up to full operating temperature so that I can scold myself with hot motor oil, and if I burn myself on the hot engine then that's just a bonus.

 

I have always done oil changes (cars, trucks, motorcycles) when hot. I drive up, open the hood for maximum ventilation, go in the house to change clothes and get the supplies all ready. By the time I actually pop the drain plug, it's been 20 - 30 minutes, and it has cooled off a bit so I don't get scalded by any splashes.

 

I always take a 15 or 20 minute drive to get the engine up to temp before draining.