Full operating temperature

CRAIGO

Member
Manchester
I know this will vary depending on model but approximately how long does it take for the M54 3.0 engine oil to reach full operating temperature? The scenario being start engine, drive around local 30mph roads with lots of stop/starting at lights and junctions etc.

I know the M cars have a proper engine oil temperature gauge but the 3.0i M54 has only water temp and that obviously isn’t to be used as a signal for increasing the revs too high or going WOT.

Is it possible an OBD2 scanner can read oil temp on the e85?
I had a remote oil filter relocation kit on my old MP62 supercharged MX5 and I had oil pressure and temperature probes bolted into the housing for that with interior gauges. It was great knowing when I could drive the car without the fear of a cold engine.

Any help appreciated :thumbsup:
 
Good question.
I managed to get live parameters in carly working in order to diagnose an overheating issue way back when but it was a pita to get it to work for any length of time.
My temp gauge is now reading low all the time which concerns me that the oil/engine temp is not at optimal operating temperature.
This happens only during cold winter months.
Hence, apart from flaky results from carly i'd also like to know if there's a data source to tap into to read oil temp.
 
Stop start driving may warm your engine relatively quickly. However it is also going to cause more stress on your cold engine, than warming up gently on a longer run. One reason mine is not a daily. :wink:
 
It is possible to get it on OBDII - comes through and displays on INPA.

Given you're used to looking at the temp gauge, I'd say that it would take longer than you'd think.
 
Just for info, my Golf does have an oil temperature gauge, unlike my Z. But on a daily drive to work in this cold weather. It can be some 7miles before the gauge reaches what I’d call normal.
The drive is initially town, so strat / stop, and then A roads. To the office is 15 miles so warmed by the time I get there :thumbsup:
 
The M is a similar capacity engine and has oil temp gauge...that takes a good 15-20 mins in 30mph stop start traffic to reach 90’C on mine. About 10 mins if you can get out onto the motorway asap.
 
I don't know about the M54, but the N52 engine takes 4 or 5 miles in mine.

I only know because it doesn't have a dipstick, so every time I use it I check the oil level using the button on the dash, and that doesn't work until it's up to temperature.

Strangely the E89 with the same engine (30i) has oil temperature instead of water temp.
 
Mr Tidy said:
every time I use it I check the oil level using the button on the dash, and that doesn't work until it's up to temperature.
I use this method every now and then too, it’s a shame they didn’t fit a temp guage in the e85 :(
 
I drive 12 miles to work daily.

Mixture of 30 / 60 / 70 mph.

Takes up to the first 1.6 miles for the temperature gauge to move up towards the end of the blue bit. That's in the 30mph part of the drive.

From 1.6 to around 3.4 miles for the temperature gauge to move towards the centre of the dial. Usually 60mph but no hard accelerating.

3.4 to 4.3 miles the car is up to temperature.

Used to have a 2007 Audi S3 and the exact same distance, same roads and same driving the temperature would be up to "Engage Turbo" mode!

I have noticed it can take around 4 miles to get up to temperature driving at 30mph if I'm just driving locally. It was the same in the Audi.

So I'd say that around 4 miles in the Z4.
 
takes me 10-15mins (8miles) to get to work and by that time it will have only just reached 97degreesC on a average day 10-16degreesC.

on days like now close to or freezing, be lucky to get it to 80-90degreesC

In summer id say by half way there its on 90degreesC

mines n52 engine, on long jurneys it tends to settle out around 100-105 if i remember correctly
 
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