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9 track days. Stock powertrain with BMW genuine oil and filters. Oil temp reach a peak for 230F during track use, the cooling system is great on these cars.

Hello! Recently bought a 2017 BMW X5 with 50k miles on it. About 4 months ago the previous owner got a 50k miles service done at the dealership. Upon closer inspection to what was actually performed on the vehicle, it looks like the dealer used BG products from the front and rear differentials...

Hello! Car is a 2010 Porsche Cayman S 3.4L DFI 6MT. Bought this in October 2021 and changed the oil in December. Previous owner stated the last oil change was performed by a local shop in April. Sold the car because he didn't drive it much anymore. With low wear and fuel dilution, I think the...

Hi guys, Sold my 2008 Corvette Z06 after 4 great years of street driving and HPDE. Unfortunately I never got to analyze the Redline 5w-40 to see if that was the right oil for wear. The oil pressures were certainly better than the 5w-30 at 265F! I now have a 2010 Porsche Cayman S with the...

Hi all - I have a 2010 Mercedes GLK350 with the 3.5L V6 port injected motor. Engine is running great at 110k miles and consumes very little oil over it's 10k/1yr oil change interval. It has had a steady diet of M1 0w-40 and Mahle filters over it's life. I was thinking of switching to Liqui Moly...

Hi BITOG members in for my annual UOA. Car is a 2008 Corvette Z06. Saw street miles and 6 track days and 5 autocross events. OLM read 42%. Oil was in the 250s for most of the events, but 2 of the days it got around 265F. I checked the oil pressures at 265F and they were right at the low limit...

Hi All, Coming up on an oil change in my BMW 335i F30. Currently running Castrol 5w-40 A3/B4 and would like something thinner for winter cold starts and improving engine efficiency. It looks like this engine (N55) can use BMW's LL-01FE spec oils which is a 0w-30. What other oils are available...

Hi all - I bought a 2012 BMW 335i RWD with the ZF 8spd automatic as a family car. I am fairly well versed in BMWs and their maintenance, but this is my first automatic. The car has 94,000 miles on it and to my knowledge, has not had the trans fluid or filter changed. I've seen a couple kits on...

The first oil change is after fixing the heads. New valve guides on intake and exhaust side, and new exhaust valves. I did another oil change in 2018 (not logged) and again in 2019. There is a couple autocross events and drag race events. The car had a cold air intake and mufflers, not heavily...

Hey Guys, I am selling my S2000 with has been primarily my track toy and transitioning over to using my C6 Z06 as a track car. The Z06 has 55k miles on it, 2008 vintage and the famed LS7 motor. The car is going to be prepped for A-Street in autocross. Basically modifications will include Corsa...

Hey all. I drive my AP1 Honda S2000 about 2-3k miles per year on the street. I am competitive in autocross (~10 events) and run a 3-4 track days a year in the car. On track days I typuically see the oil temperatures around 260F, sometimes above 280F. Currently I am running 4qt Mobil 1 0w-40 and...

Hello All! I recently upgrade the heads on my C6Z to get rid of the valve guide problem that plagues these cars on the OEM heads. I removed my OEM heads, sent them to American Heritage Performance in Cali. They cleaned them, put in new hardened powdered metal valve guides, new steel exhaust...

Hello BITOG community! I recently picked up a 2008 Corvette Z06 with 47k miles on it! Reading through the owner manual, there is no recommended service intervals for the following items: Brake fluid Clutch fluid Differential fluid Transmission fluid Power Steering fluid I plan on driving it...

Hi all, Who would be comfortable changing their oil once a year with Redline? Car is a 2000 Hondas S2000 at 133k miles, with some bolt on modifications. Sees about 4 track days and 10+ auto crosses each year. Gets driven on the street aggressively. Would like to simplify my maintenance and just...

Hello BITOG community, My current one-way commute to work is about 20 miles, nearly all highway. Nice road to get the car fully warmed up. I am looking to buy a house where I have a 1.8 mile commute to work! Great savings on fuel, tires, ect. During the spring, summer, and fall, I plan to...

Hello BITOG crew! Recently purchased a 2000 S2000 (AP1) with the F20C 2.0L 8,800 RPM engine in it. Car has 129K on it and will be used as a track toy and street go-cart. Will not see cold weather usage. The car is specced for a conventional 10w-30 from Honda. Previous owner ran Amsoil 10w-40...

Tooling around last night.... It seems that getting an A1/B1 rating on a 20 grade oil or an A5/B5 rating on a 30 grade oil is some what difficult! 0w-20 A1/B1 Castrol Edge Pennzoil Ultra Platinum 5w-30 A5/B5 Castrol Edge Pennzoil Platinum Pennzoil Ultra Platinum These were the only "Walmart"...

Hello - I am a long time user of Mobil 1 0w-40 in my '08 BMW 335i and '10 Mercedes GLK. It is convenient that both cars use the same oil... until recently. Many are aware that the new M1 FS 0w-40 is not BMW LL-01 approved anymore. I have about 4 quarts left of the old M1 0w-40 formula (not...

Hello all, below is a UOA of my BMW that saw 2 road course events and 1 autocross. First event was 3 25 minute sessions. Oil temps stabilized at 270F. The second event was 6 20 minute sessions, the first session i forgot to take my cowl and engine cover off so my oil temp hit 280F oops The rest...

My Accord is a V6 6-speed with 227k on the clock. Been on synthetic oil it's whole life. Sadly I'm planning to get rid of it in two years, looking to get a newer daily. My commute to work and back is 20 miles each way, and I maybe take 2-4, 5 mile trips around town during the weekend. Given this...