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Brian, I put in a new DI Cassette at 80-something, so it's got about 20k on it. It's the old red one, as you know, so it died a nice graceful death (misfiring occasionally and then more often). I'm not expecting the replacement to have any trouble for a long time. The plugs were new at 100k...

JAG, Thanks for the reply. My assumption is that abnormally high blow-by is primarily a result of bad rings, and that along with it you would normally see some oil consumption. Hopefully, my low consumption means that this is not really an issue. That leaves fuel condensation on the cylinder...

RI_RS4, I agree that the two could be correlated--but as I wrote, I recently changed the air filter, putting in a new OEM paper filter, which is what I was running when the silicon was low. Silicon didn't drop back down, though. I have also been running Techron Concentrate every 10k miles...

saaber1, The new 9-3 (2003+) and the Vectra (2002+) are both based on the GM Epsilon platform, along with the Chevy Malibu, Pontiac G6, Saturn Aura, and Cadillac BLS. However, the Saab is in no way a re-badged Opel. Saab and Opel shared the design lead for the Epsilon platform specification...

This engine was before the sludge problems. The last time I had it open was at 60,000 miles (now 105,000), and it was spotless inside. I've used nothing but M1 0W-40, GC, and D1 since then, with 5000 mile OCIs, so I'm hoping it's still just as clean. As you can see, fuel dilution has been all...

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...

Thanks for the thoughts. To answer your questions... No, I did not test for TBN. I don't intend to run longer than 5k OCIs, and I figure the oils I'm using should be fine for 5k. You're correct about the city driving--or at least, short-trip driving. My commute is about 9 miles each way, and...

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...

This is still backwards. Open differentials apply the same torque to both outputs, by definition. This can result in different angular velocity of the two outputs. Locked differentials apply the same angular velocity, which can result in different torques. I'll work through the ice example again...

This is not actually true. The device that allows the wheels to turn at different speeds is called a "differential." By definition, an open differential applies equal torque to both output shafts; both drive wheels will apply equal power to the ground. The problem with an open diff is that if...

Went to my usual AZ the other day (Watertown, MA), and the GC slot on the shelf was empty. Also checked for M1 TDT 5W-40 (since that's my other favorite oil) but they didn't have that either (not that I was surprised; they've never had it or the original 5W-40 TSUV). So, I read the boards on...

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...

Good thoughts... The silicon did go up, which shouldn't be related to the oil. Still, it seems way too low to be an issue of a leak in the intake or anything like that. Figure I'll just keep an eye on it for next time. Along with the most recent oil change, where I put in GC Gold M0521, I also...

GMorg, whaddya mean? I thought carbon fiber grew on a tree, all by itself, just like ethanol and hydrogen. You don't mean to say these things require energy input, do you? Matt

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...

1998 Honda Prelude. I'd imagine it's similar to some of the other Hondas mentioned here. Halfway up the block towards the firewall. The exhaust flex pipe is directly below it, and other things are in the way as well. Only way I can reach it is on my back under the passenger side of the car...

They all have problems. I handle shipping for my company. UPS is the most reliable, but yes, they lose packages, damage things, and have some incompetent people working for them. DHL is usually as good as UPS, but they have some hidden fees they tack on for international shipments. Fedex is...

quick question, just to be sure... The gold GC you used...is it M05/M06, or is it M01 (date code on the bottom)? Matt

'99 Saab 9-3 here. Short commuting trips mixed with some longer drives (200 miles to New York, ski trips to VT, etc). Put it in in the winter, and I'm just about due for an oil change. Winter temps here in Boston can get down below zero overnight. No problems with single-digit temps on startup...

5W-30 does sound a bit thin for an oil in LA in an ecotec. The same block in a Saab takes your choice of a 30wt or a 40wt, even in much colder climates. You're still under warranty, so don't do anything your manual doesn't specify, in case you run into an uneducated customer disservice agent in...