Oil Change hot or cold?

[[RT] ProjUltraZ]

Originally Posted By: NismoMax80
no thoughts on whether pouring some new through once finished draining the old to push out any just sitting in there?


the problem is it may 'clean' a path on it's way down (debatable), but it will only be a small path, not worth wasting clean oil

 

[Craig in Canada]

Originally Posted By: wannafbody
With synthetic is cold as much of an issue-after all M1 will flow at minus 40.


They aren't miracle fluid which defy the laws of physics. Even 0W synthetics are much thicker when cold.

 

[labman]

Originally Posted By: Craig in Canada
....
- oil flows down from the cams faster (for those with OHC)
....


Even more oil has flowed down by the time the engine cools off.

 

[FiremarshalRob]

I like to change mine hot to where the oil scalds my hands!

 

[sunfire]

Has this thread changed anyone's mind? Hot oil people going to try cold and vice versa.

 

[demarpaint]

Originally Posted By: sunfire
Has this thread changed anyone's mind? Hot oil people going to try cold and vice versa.


No I'll still change it hot, maybe extend the drain time to a solid hour vs about an hour.

 

[Hitzy]

For me....hot, drain for about 20-25 minutes until only a drop is coming out every minute or so.

 

[Audi Junkie]

I quit draining when it goes from a stream to drips. Another reasons not to over extend ocis is the residule quart.

 

[crazycrak]

I remember hearing some where that its not good to toqure anything hot and my oil cap is harder to get off when its hot

I just usally change when its cold just wake up go drain early in the moring so all the oil has drained down