[formula0]

The Ultimate Driving Machine.



I have an '08 E90 with the factory oil cooler and the only mod being a JB3.

I took a 4 hour trip last night, driving between 75 to 85 mph with external air temperature varying between 105 to 113 degrees, and oil temp staying rock steady at 235 to 240 for the duration of the trip.

The trip was mostly mountainous freeway, varying between 1,000 to 5,000+ elevation.

AC on cold, heated seats on, car loaded with another passenger, a dog, and a week's worth of luggage.

28.6 mpg the entire way.

[quattr0]

Thanks for sharing.

I'm not sure while people turn on A/C and heated seat at the same time. Are you trying to see if it affects your oil temp somehow?

[kptaylor]

Why "heated seats on" when it's over 100 and you have the air blasting?

And on topic, I would hope all cars, stock or tuned, would not break 250 degrees during highway driving since there's adequate cooling (relative) air flowing over the oil cooler.

It's been like 115 ambient with 140 degree asphalt here!

[formula0]

Originally Posted by quattr0

Thanks for sharing.

I'm not sure while people turn on A/C and heated seat at the same time. Are you trying to see if it affects your oil temp somehow?

I do that fairly regularly, usually on longer trips where I'm sitting for a while. Trying to get some heat in my back muscles and blood circulating or something. With heated seats on the 1st or 2nd setting it doesn't make me feel any warmer, as long as I have cool air to breath I'm okay.

You guys are probably just young. When you're old like me maybe you will understand

[ohaywood]

My '07 with no oil cooler gets up to this temperature regularly.. almost every time I'm driving for more than 20 minutes.

[Duhst]

haha nicee

[BMdblU]

Originally Posted by formula0

I do that fairly regularly, usually on longer trips where I'm sitting for a while. Trying to get some heat in my back muscles and blood circulating or something. With heated seats on the 1st or 2nd setting it doesn't make me feel any warmer, as long as I have cool air to breath I'm okay.

You guys are probably just young. When you're old like me maybe you will understand

I do the same thing on longer drives and I'm only 26

[luca335i]

You put on the heated seats in the summer Dave? LOL.

[Z22Z]

the only time you should have the temp go close to 250 is when you are in heavy stop and go traffic or doing canyons. even then its hard to get it passed that mark.

[NiVeDh]

28.6 mpg with JB3 - impressive!

[vegasspeed]

That won't make your oil temps go up. Your temps go up when you do multiple runs going up to 6800 rpms in each gear on a track. That gets your engine hot. If you stay in one gear doing 80mph you have plenty of air flow to cool your car and oil. Go run to a track and do 20 minutes full speed and see how it goes then. That is another story all together.

[alq80]

weird... my temp gauge is max at 300F...

[roadkillrob]

Originally Posted by alq80

weird... my temp gauge is max at 300F...

The early cars only went to 300, but I guess too many people complained because the temp was always near the top of the gauge, so they changed it so that a normal temp of 240 or 250 was in the middle so it looked better!

[formula0]

Originally Posted by vegasspeed

That won't make your oil temps go up. Your temps go up when you do multiple runs going up to 6800 rpms in each gear on a track. That gets your engine hot. If you stay in one gear doing 80mph you have plenty of air flow to cool your car and oil. Go run to a track and do 20 minutes full speed and see how it goes then. That is another story all together.

Of course you are correct.

I'm merely illustrating that the car is built rock solid from BMW to do what it's designed to do 95% of the time for most normal people.

A lot of times all you read on this forum is limp mode here, HPFP failure this, heatsoak that, help I need coated DP's and oil cooler and IC because I think my daily driving is exceeding the cooling capacity that BMW designed for, etc etc.

[Lowcruzr]

Originally Posted by formula0

I do that fairly regularly, usually on longer trips where I'm sitting for a while. Trying to get some heat in my back muscles and blood circulating or something. With heated seats on the 1st or 2nd setting it doesn't make me feel any warmer, as long as I have cool air to breath I'm okay.

You guys are probably just young. When you're old like me maybe you will understand

I'm older (36) and I do the exact same thing for the exact same reason.

[Mr. 5]

Originally Posted by formula0

I took a 4 hour trip last night, driving between 75 to 85 mpg with external air temperature varying between 105 to 113 degrees, and oil temp staying rock steady at 235 to 240 for the duration of the trip.

Wow! 85 mpg. That's a lot!!

[Lowcruzr]

Originally Posted by Mr. 5

Wow! 85 mpg. That's a lot!!

Good catch, I missed that one.

[formula0]

Originally Posted by Mr. 5

Wow! 85 mpg. That's a lot!!

Oops. Fixed

[vegasspeed]

That is true. Many posts point out the bad things with our cars so it is good to see a positive post for once. Give the guy some credit for posting something that doesn't make it look like our cars lose fuel pumps every ten minutes and overheat. Personally, I have had zero problems so far(fingers crossed)