The reason I do used oil analysis and extended oil changes is: 1) I find it interesting; 2) so we might learn something?
This ti13th UOA, 07 Toyota 4.0L, Mobil Delvac 1 ESP 5w30, 10k milesme I sent a sample to both Oil Analyzers Inc and Blackstone Labs.
Vehicle, a 2007 Toyota 2wd FJ Cruiser w/4.0L 1GR-FE DOHC gasoline V6 w/VVTi. It is my daily driver and has been for 13+ yrs. Engine had 217,300 miles at the time that the sample was taken. The sample oil was dual rated (spark and compression) Mobil Delvac 1 ESP 5w30. It was 15 mths old w/10,000 miles on it. Previous oil run was the same. The full flow filter was again a Fram Ultra XG8A. The bypass filter was an Amsoil EaBP90 and was its third run since new. The air filter was a Fram Ultra XGA9683 that was new 27k miles and 32 mths ago. I do not drive in dusty conditions. We live in the country outside of San Antonio, Tx and the vehicle see's nothing but rural driving. It doesn't puff smoke at start-up, leak or burn any oil. I'm a DIYer. The vehicle has never needed to go to a shop for repairs. I do it all. It has never left me stranded. It's a wonderful vehicle and I plan to keep it a lot longer.
During this oil run I did the following which may have contributed to the Silicon level:
1) removed the driver side valve cover. Cleaned it inside and out. Put it back on with a new Felpro gasket. It wasn't leaking. I was just curious as to what it looked like inside. I've seen better, and I've seen worse.
2) cleaned MAP sensor
I have always run regular unleaded. Toyota recommends super unleaded. I tried Super unleaded, but gas mileage didn't increase. I always get 20 mpg = 300 to 310 miles between fill-ups.
** NOTE the comments from each lab** OAI always flags and "boo hoo's" my results. Blackstone says, "keep doing what you're doing."
I guess the proof is in the pudding. It has always run strong without issue(s), and little wear metal(s) in the results.
After receiving these results, I switched oil to Mobil 1 5w20, the 10k stuff. I installed another Fram XG8A full flow, a new Amsoil Ea90BP bypass filter, and a new Fram XGA9683 air filter.
What say you?
I always cut my filters open and inspect them. I've included pics of the full flow and bypass oil filter pleats, and all the bits & pieces.
From OAI:
Then here are the Blackstone results:
This ti13th UOA, 07 Toyota 4.0L, Mobil Delvac 1 ESP 5w30, 10k milesme I sent a sample to both Oil Analyzers Inc and Blackstone Labs.
Vehicle, a 2007 Toyota 2wd FJ Cruiser w/4.0L 1GR-FE DOHC gasoline V6 w/VVTi. It is my daily driver and has been for 13+ yrs. Engine had 217,300 miles at the time that the sample was taken. The sample oil was dual rated (spark and compression) Mobil Delvac 1 ESP 5w30. It was 15 mths old w/10,000 miles on it. Previous oil run was the same. The full flow filter was again a Fram Ultra XG8A. The bypass filter was an Amsoil EaBP90 and was its third run since new. The air filter was a Fram Ultra XGA9683 that was new 27k miles and 32 mths ago. I do not drive in dusty conditions. We live in the country outside of San Antonio, Tx and the vehicle see's nothing but rural driving. It doesn't puff smoke at start-up, leak or burn any oil. I'm a DIYer. The vehicle has never needed to go to a shop for repairs. I do it all. It has never left me stranded. It's a wonderful vehicle and I plan to keep it a lot longer.
During this oil run I did the following which may have contributed to the Silicon level:
1) removed the driver side valve cover. Cleaned it inside and out. Put it back on with a new Felpro gasket. It wasn't leaking. I was just curious as to what it looked like inside. I've seen better, and I've seen worse.
2) cleaned MAP sensor
I have always run regular unleaded. Toyota recommends super unleaded. I tried Super unleaded, but gas mileage didn't increase. I always get 20 mpg = 300 to 310 miles between fill-ups.
** NOTE the comments from each lab** OAI always flags and "boo hoo's" my results. Blackstone says, "keep doing what you're doing."
I guess the proof is in the pudding. It has always run strong without issue(s), and little wear metal(s) in the results.
After receiving these results, I switched oil to Mobil 1 5w20, the 10k stuff. I installed another Fram XG8A full flow, a new Amsoil Ea90BP bypass filter, and a new Fram XGA9683 air filter.
What say you?
I always cut my filters open and inspect them. I've included pics of the full flow and bypass oil filter pleats, and all the bits & pieces.
From OAI:
Then here are the Blackstone results: