1999-2009 [Subscribe to Daily Digest] |
It's an intriguing thought, isn't it? :-) I've contemplated this one myself, but there are problems introduced with a Saab turbo engine that you never had to worry about with that Eagle Premier.
As Stephen said, the turbo will destroy even the best synthetics (given enough chance to do so). The longer you leave it in there, the greater the destruction.
As Dean said, the filter's pretty small. Even if you went with a longer filter, you'd still only change out maybe 16 oz of oil each time. Add to that the small 4L sump capacity & you're not spreading the abuse out over much oil.
As Dick said, you could sample at regular intervals & change it when the lab told you to, but the cost & hassle (on top of using old oil) makes this less attractive than just changing it.
All that being said, we're talking 27k miles, right? If you REALLY wanted to give it a go (and I'm NOT saying that you should), here's the way I'd approach it:
1) Buy a bottle of Auto-Rx & add it to fresh Saab 5W-30 syn blend or Rotella 5W-40 full syn (with a new filter) & run it for 2k miles (or 3k miles, but change the filter at the 1/2-way point & add more oil & A-Rx).
2) Dump it all, including the filter. This should put you somewhere around the 23k-25k mile mark to reach 100k.
3) Refill with M1 15W-50, Delvac 1 5W-40, or the new M1 5W-40 syn. All of these oils offer better additive packages & High Temp/High Shear resistance than any other M1 product.
4) Check the oil every 500-1000 miles & always, always, ALWAYS keep it filled to the max level.
5) Change the filter every 5k miles & top up to max.
6) Be nice to pets, babies, little old ladies, etc, remembering to kiss said individuals at every opportunity. (We're building up karma here.)
7) Regularly pray to whatever God(s) you believe in, with emphasis on the needs of others. (Yes, we're reinforcing dogma here.)
8) Make absolutely NO JOKES about your karma running over your dogma. Seriously. I lived in Boulder for 10 yrs, & I'm sick to death of it. The jokes, not Boulder.
9) Don't come & hunt me down with lawyers, guns or money if your oily fun somehow goes hideously wrong & your engine drops out the bottom of your car in a spectacular "turbo flambeau" while you & the family are crossing Death Valley on your once-every-10-yr cross-country vacation, forcing you to eat Scruffy, drink urine, & coerce the kids into pretending they're dead so you can lure carrion eaters close enough to grab them & drink their blood to survive.
10) Sing, dance & carouse with reckless abandon when your car's still running at 100k miles. Point & laugh at the rest of us cretins still changing our oil at regular intervals, pouring engine libations to the Turbo Gods at every opportunity.
Anyway, that's what I'd do if I were going to give it try ...
posted by 32.103.217...
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