BMW 3-Series (E90 E92) Forum - View Single Post - BMW Oil Study Done-Long Interval Changes unhealthy for N54 engine

ManyMoonsAgo · 07-13-2009, 04:29 PM

I change oil every 7,000 miles.

I just changed OEM 5W30 with Red Line 5W40 as living down in south-west Florida it rarely drops below 60-deg F in the winter and is commonly above 90-deg F in the summer.

With Red Line in the system, my peak oil temp coming home today was 225-deg F. The air temp is 92-deg F and my commute was 35 minutes in stop & go traffic with one jaunt to a peak speed of ~60 mph. With OEM oil, my temp was ALWAYS 240-deg F with occasional jumps to 250-deg F.

The kicker is Red Line is not an 'authorized' BMW oil, so please do your own research before blindly adding to your car.

(Apologies for the crappy cell-phone picture quality)

07-13-2009, 04:29 PM	#64
ManyMoonsAgo Second Lieutenant 7 Rep 241 Posts Drives: 2008 BMW 335i Coupe Join Date: Oct 2007 Location: Pinellas County, Florida, USA iTrader: (0)	I change oil every 7,000 miles. I just changed OEM 5W30 with Red Line 5W40 as living down in south-west Florida it rarely drops below 60-deg F in the winter and is commonly above 90-deg F in the summer. With Red Line in the system, my peak oil temp coming home today was 225-deg F. The air temp is 92-deg F and my commute was 35 minutes in stop & go traffic with one jaunt to a peak speed of ~60 mph. With OEM oil, my temp was ALWAYS 240-deg F with occasional jumps to 250-deg F. The kicker is Red Line is not an 'authorized' BMW oil, so please do your own research before blindly adding to your car. (Apologies for the crappy cell-phone picture quality) Attached Images __________________ Montego Blue / Saddle Brown / Gray Poplar 6-speed Manual (CDV-free) / BMW Performance Exhaust / Dinan Intercooler / Dinan Stage 2 / Dinan Cold Air Intake BMW Performance Suspension / Dinan LSD / 19" Forgestar F14s / Front and Rear M3 Bushings & Arms / Rear Sway / Dinan Monoballs
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