Any harm to changing your oil when full hot?

[Garak]

Originally Posted By: IndyIan
One thing I wouldn't recommend is pouring -15 or -20C oil into a hot engine.

Having used conventional (and 10w30 to boot) for as long as I have, I wouldn't have even thought to try.

I tried once with a cold engine, but that was enough to remind me it was a very foolish idea, unless I like standing out in the cold watching oil pour within a few degrees of its pour point.

When I didn't have access to a heated garage, I kept top up oil (my LTD was a terrible burner) indoors or in the interior so it could at least warm up a bit.

@TechnoLoGs: I guess I've been lucky. As messy as I have been over the years, I'm surprised I didn't find a nomex suit or something to wear while changing oil, but, no burns. If I do find the drain plug uncomfortably warm to hold, I drop it, into the drain pan, naturally, to compound my problem.

 

[Cold_Canuk]

Love the fumoto drain plugs, never go back, top shelf gear.

 

[Doog]

Originally Posted By: TechnoLoGs
As in, let's say the engine is fully warmed, and driven on. Is it safe to take off the oil pan bolt, and change the oil?


Safe?

 

[Corvette Owner]

No problem with thermal issues ([censored] (censored?, hey it stands for Bachelor of Science) ME (Mechanical Engineer), Rocket Scientist for 39 years). The engine parts aren't close to any damaging temperatures, besides "oil quenching" is a relatively "easy thermal quenching" when annealing parts.

To prevent burning myself (and keep my hand clean), I always use a thick, reusable, rubber glove when removing the oil plug and the oil filter. Oh, and turn the back of the glove up to catch any excess. I use a paper towel to wipe off the glove.

(Sometimes it DOES take a Rocket Scientist!)

 

[AlienBug]

The next BITOG "can you spot what the mechanic did wrong" video.

"He didn't even pre-warm the bottles!"

 

[JasonTL]

I've wondered about the personal safety aspect of hot changes. When I unscrewed my filter partially oil flowed up and over the sides and covered my hand(yes, this was after removing the drain plug and letting it drain for five-ten minutes or so). Is there a clean way of removing the filter or is the oil not really as hot as one would think?

Side note, those fumoto drain valves look interesting. Would get rid of the annoyingness of potentially dropping the drain plug into the old oil.

 

[SHOZ]

I just let the drain plug drop into the pan then fish it out with a magnet.

 

[sgvaibhav]

I thought its good to change oil when the oil is hot.

So before the oil change i used to drive for 10 kms - on first or second gear at 5000 rpms to heat up the oil

 

[DragRace]

I've done it this way for years,no issues.

 

[S65AMG]

Originally Posted By: Corvette Owner
No problem with thermal issues ([censored] (censored?, hey it stands for Bachelor of Science) ME (Mechanical Engineer), Rocket Scientist for 39 years). The engine parts aren't close to any damaging temperatures, besides "oil quenching" is a relatively "easy thermal quenching" when annealing parts.

To prevent burning myself (and keep my hand clean), I always use a thick, reusable, rubber glove when removing the oil plug and the oil filter. Oh, and turn the back of the glove up to catch any excess. I use a paper towel to wipe off the glove.

(Sometimes it DOES take a Rocket Scientist!)


I like the turned up glove idea!

 

[S65AMG]

Originally Posted By: JasonTL
When I unscrewed my filter partially oil flowed up and over the sides and covered my hand(yes, this was after removing the drain plug and letting it drain for five-ten minutes or so). Is there a clean way of removing the filter or is the oil not really as hot as one would think?


Flexible funnel.

 

[S65AMG]

Originally Posted By: bigjl
The oil you pour into the engine is not going to be cold unless you stick it in the fridge beforehand.


A fridge may be cold for humans, but for oil it's nothing.

A freezer is not even that cold for oil.

 

[DBMaster]

Originally Posted By: Cold_Canuk
Love the fumoto drain plugs, never go back, top shelf gear.


I am getting close to my oil change that will be the first using the Fumoto that I installed when I changed the FF. I used a Fram Sure Drain for years on my last car and the Fumoto seems even easier to use.

To comment on the thread, I have been changing my oil hot for as long as I have been changing oil. Seems like you get the most out that way and the oil change itself takes less time with the oil flowing that freely. I do use gloves so I don't burn myself.

 

[Garak]

Originally Posted By: JasonTL
Is there a clean way of removing the filter or is the oil not really as hot as one would think?

Depending upon the application, it's not really as hot as one would think. Even if it's not, I prefer to use rags, shop towels, gloves, and grocery bags in whatever combination works best to prevent touching something uncomfortably warm or messy.

 

[LckydevL]

Originally Posted By: Garak
Originally Posted By: JasonTL
Is there a clean way of removing the filter or is the oil not really as hot as one would think?

Depending upon the application, it's not really as hot as one would think. Even if it's not, I prefer to use rags, shop towels, gloves, and grocery bags in whatever combination works best to prevent touching something uncomfortably warm or messy.



I have found puncturing a hole or two or three on the bottom of the filter with a screwdriver or punch of some type helps with the mess. Using a plastic grocery bag with a blue shop towel inside to unscrew the filter, after it drains a few minutes also keeps old oil contained.

Again, it all depends on the application. You wind up just experimenting with different methods most of the time until you find the right one for your vehicle type.

Sometimes you just have to cowboy up and take a bath.

 

[Corvette Owner]

Originally Posted By: JasonTL
I've wondered about the personal safety aspect of hot changes. When I unscrewed my filter partially oil flowed up and over the sides and covered my hand(yes, this was after removing the drain plug and letting it drain for five-ten minutes or so). Is there a clean way of removing the filter or is the oil not really as hot as one would think?

Side note, those fumoto drain valves look interesting. Would get rid of the annoyingness of potentially dropping the drain plug into the old oil.


Guess you missed my post:

To prevent burning myself (and keep my hand clean), I always use a thick, reusable, rubber glove when removing the oil plug and the oil filter. Oh, and turn the back of the glove up to catch any excess. I use a paper towel to wipe off the glove.

 

[FZ1]

$21 at the Honda dealer including new oem filter. What me worry?