Oil temps: 335 comparitive observation.

Fountainhead · 06-10-2014, 12:08 AM

Quote:

Originally Posted by Antistupid

Wow, it seems I need an oil cooler just to drive this Z.

I purchased my Z with 10k miles, had it hit 270 on the way home. Figured they did a **** oil change. Switched to Castrol Edge 5w30 and lowered my normal driving temps to 220ish. Which is this Zs normal 60-70mph temp. I can do one maybe two interstate pulls then have to shut it down ,frown, and go home.

A local guy who has a 135i, heavily modded, runs a consistent 260 @70mph, no idea what it ran stock. same tt v6 as the 335.

Hi Anti,

What's a "Pull" on the interstate, do you mean sustained high speeds, or downshifts to high RPM gears below/close to speed limit? Trying to understand your conditions. NOLA isn't hotter than FL, and mine's an 09, so my temps in FL on a 90+ degree day aren't hitting above 220, either in hellish stop and go for miles on interstate with AC cranking, or high speeds on interstate, or stop and go driving on days with 95+ heat.

juld0zer · 06-10-2014, 12:33 AM

wasn't there a lot of uproar also from the BMW community over the lack of sufficient oil cooling for the 135/335/N54 powered vehicles?

From memory, BMW eventually caved and an additional oil cooler was retrofitted. The engine has an oil to water heat exchanger as standard in the oil filter housing. Retrofits had an extra oil to air cooler mounted in the fender with a louvre near the front of the tyre. Retrofitted models also have two large-ish oil hoses running across the engine from the filter housing to the fender.

Limeybastard · 06-10-2014, 04:53 AM

Quote:

Originally Posted by Fountainhead

Hi Anti,

What's a "Pull" on the interstate, do you mean sustained high speeds, or downshifts to high RPM gears below/close to speed limit? Trying to understand your conditions. NOLA isn't hotter than FL, and mine's an 09, so my temps in FL on a 90+ degree day aren't hitting above 220, either in hellish stop and go for miles on interstate with AC cranking, or high speeds on interstate, or stop and go driving on days with 95+ heat.

So effectively the 2013+ heat exchanger doesnt really do much. Mine almost gets to 220 also and its a 2014 MY. This is with spirited driving then followed by stop go traffic.

juld0zer · 06-10-2014, 05:32 AM

put it this way, if your coolant temp is 100*c then your oil temp cannot be cooler than 100*c. I find that once you get the oil above 90*c it's hard to get it down again no matter how gently you drive after thrashing it. The engine needs to be switched off and rested.

Personally, i still think the oil to water setup is sufficient for most drivers. It's certainly better than nothing

06-10-2014, 12:33 AM	#2 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 140	wasn't there a lot of uproar also from the BMW community over the lack of sufficient oil cooling for the 135/335/N54 powered vehicles? From memory, BMW eventually caved and an additional oil cooler was retrofitted. The engine has an oil to water heat exchanger as standard in the oil filter housing. Retrofits had an extra oil to air cooler mounted in the fender with a louvre near the front of the tyre. Retrofitted models also have two large-ish oil hoses running across the engine from the filter housing to the fender.

06-10-2014, 05:32 AM	#4 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 140	put it this way, if your coolant temp is 100c then your oil temp cannot be cooler than 100c. I find that once you get the oil above 90*c it's hard to get it down again no matter how gently you drive after thrashing it. The engine needs to be switched off and rested. Personally, i still think the oil to water setup is sufficient for most drivers. It's certainly better than nothing