Oil analysis at 27K on MY06 2.7L

[MikenOH]

I decided to sample my last fill of M1 15W-50 which had 5500 miles on it and 8 track days with my wife and I driving back to back sessions. All interstate driving otherwise.

The results were great save the viscosity being a bit lower than it should have. It would appear that M1 in this weight works for this number of track days, but I don't think I'd go any longer.

[Pat]

Good stuff, thanks for sharing.

[JoeFromPA]

Viscosity dropping is no real concern, but I agree that it shows the oil was getting beat up on the track days. Excellent showing though....I can't believe how little dissolved metals this oil report shows, even on a modern engine, but especially on one that had 8 track days on it.

M1 15w50 has been and is one of the finest oils on the market. It's cold viscosity is closer to a 10 weight. It flows very well at ~40 degrees, and is one of the best oils for cars that run an operating oil temp of over 210 degrees fahrenheit.

[Flavor 987S]

Mike, that's a good oil report. Keep doing the Blackstone reports. This is your base-line report. Future reports will continue to give you valuable info regarding the health of your engine and necessary drain intervals.

I compared your report to the Mobil One 15W50 I run in my 993 Turbo (I am now running Mobil One Twin V 20W50). The results are similar. I also compared to my 2006 987S that is running Redline 5W40 (I plan to run M1 5W50 at the next oil change in October) and again the results are very similar.

I know lots of 993 Turbo owners running M1 15W50 in their air-cooled turbos with excellent results.

[JoeFromPA]

Originally Posted by Flavor 987S

I know lots of 993 Turbo owners running M1 15W50 in their air-cooled turbos with excellent results.

That's cause Porsche recommended running 20w50 dino for about 25 years, including on the track, and proved to be reliable as heck. Now we've got a far superior oil in 15w50, and what do you know....it's rocking as well

[dbw]

I've been sending oild samples to Blackstone from my various vehicles for years.....good place. You can call them up and discuss your report if you like.

[944boy]

That's a good point of comparison. I will be sending a sample to Blackstone from the Boxster for my next change. I have sent a few samples to them for my motorcycle. Turned out to be good because I was still working out break in particles and they found gas in the oil.