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1999 Saab 9³ 2.0L Turbo (185hp base model) Mobil1 Turbo Diesel Truck 5W-40 See here for last report: http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Board=3&Number=897692 And here's the results: As a note, in almost all of these, although I added no makeup oil, the engine...

1999 Saab 9³ 2.0L Turbo (185hp base model) Third consecutive run of GC Gold. See here for last report: http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB3&Number=760860 Copper was elevated in the last report, maybe due to some engine work I did during that interval. Its...

1999 Saab 9³ 2.0L Turbo (185hp base model) Previous report here: http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB3&Number=254308 At 90,000, I did a bunch of work. New spark plugs and a run of Techron concentrate to start, and then some more serious work, including replacing...

Looks like I forgot to post the previous report; my last post was two UOAs ago. Here's the history: I was using M1 0W-40 for a few OCIs, did a UOA and wasn't happy. I switched to M1 5W-40 T&SUV and did a UOA, which is posted here...

Last interval was 6 winter months (in Boston) with M1 0W-40; this was 6 summer months with the 5W-40. The climate change means this isn't a completely fair comparison, but the 5W-40 results are very encouraging. I'm certainly happy with them. Four new quarts of the T&SUV is back in for another...

My girlfriend drives a '98 Prelude with the H22A4 engine. This engine burns oil. Yes, I know there are people out there who have H22As with 10 million miles and have never burned a drop, but in general, most H22As burn oil. My girlfriend's car is no exception; it uses about 1qt/1000mi. Hers has...

This is my first UOA, but my third interval with M1 0W-40. During this interval, I had the valve cover off to retorque the head bolts as a precaution (most were improperly torqued from the factory) and I probably got some dust in there, as it was a little windy that day (and I was outside)...