The reason I do used oil analysis and extended oil changes is: 1) I find it interesting; 2) so we might learn something.
Vehicle is 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 12 yrs. Engine had 207,300 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 12 mths old w/11,100 miles on it. Previous oil run was the same except 5w40. The full flow filter was again a Fram Ultra XG8A. The bypass filter was an Amsoil EaBP90, and was seeing its second run since new. The air filter was again a Fram Ultra XGA9683 that was new 17k miles and 17 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, at least until I win the lottery
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During this oil run I did the following which probably caused the higher than normal Silicon level.
1) changed the pcv valve
2) cleaned MAP sensor
3) cleaned throttle body
4) changed spark plugs
5) removed the passenger 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.
I have always run regular unleaded. I tried Super unleaded, but gas mileage didn't increase. But for the last 6 mths, each time I fill-up, I pump in 3 gals of e85 first($0.30/gal cheaper) then fill it the rest of the way(12 gals) with regular unleaded. Now I get 300 to 310 miles between fill-ups, which is about a 10 mile/tank increase and lower cost/tank.
OAI flags and "boo hoo's" my results, and Blackstone says "looks fine, keep doing what your doing." OAI doesn't have enough data on the oil and wanted me to submit a virgin oil sample for a baseline. NOT! The next run is this same oil then I'll be switching to something else.
The proof is in the pudding. It is running strong, and has always run strong without issue(s). Always very little wear metal(s) in the uoa results.
What say you?
Included is a pic of the oil filter pleats and pieces in case you were curious about such things?
Vehicle is 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 12 yrs. Engine had 207,300 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 12 mths old w/11,100 miles on it. Previous oil run was the same except 5w40. The full flow filter was again a Fram Ultra XG8A. The bypass filter was an Amsoil EaBP90, and was seeing its second run since new. The air filter was again a Fram Ultra XGA9683 that was new 17k miles and 17 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, at least until I win the lottery
.During this oil run I did the following which probably caused the higher than normal Silicon level.
1) changed the pcv valve
2) cleaned MAP sensor
3) cleaned throttle body
4) changed spark plugs
5) removed the passenger 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.
I have always run regular unleaded. I tried Super unleaded, but gas mileage didn't increase. But for the last 6 mths, each time I fill-up, I pump in 3 gals of e85 first($0.30/gal cheaper) then fill it the rest of the way(12 gals) with regular unleaded. Now I get 300 to 310 miles between fill-ups, which is about a 10 mile/tank increase and lower cost/tank.
OAI flags and "boo hoo's" my results, and Blackstone says "looks fine, keep doing what your doing." OAI doesn't have enough data on the oil and wanted me to submit a virgin oil sample for a baseline. NOT! The next run is this same oil then I'll be switching to something else.
The proof is in the pudding. It is running strong, and has always run strong without issue(s). Always very little wear metal(s) in the uoa results.
What say you?
Included is a pic of the oil filter pleats and pieces in case you were curious about such things?
no it won’t clean up jack. No off the shelf oil will clean up varnish, regardless of what you read on the internet. I’ve done my fair share of testing in this department. There was no cleaning AT ALL. Don’t waste your time & money.