Diesel oil in gas engine reply - long

Status
Not open for further replies.
Originally Posted By: Eiron
I just replaced our '99 Saab T5 with an '02 Saab T7 sludge-prone model...


Why would you go and do a fool thing like that?

Notice my siggy line these days...

Re: the OP, yes, Valvoline is offering decent advice...but cat poisoning is also going to be related to oil consumption as well... My 02 CR-V seemed to ruin a cat just fine on SM and SL synths with its quart per few thousand consumption....
 
Originally Posted By: CSM746
Thanks Eiron....I will give the Delvac 1 a whirl. As I understand it, the time immediately following shut down after shutdown is most critical. As it spins down and cools off, the turbo attempts to boil and cook down the oil left in it

I change the oil on 5K intervals and use the large size Mobil 1 301 filter which is the proper fit for these engines. With this filter you can replace the full four quarts without being well above the fill line.

I am fine running the dual rated oil 5W40 and will try the Mobil 1 10W30 HM this coming winter.

thanks
You're right about cool-down, but I'm sure you're turbo is water-cooled, too. Like BuickGN said, drive calmly thru your neighborhood until you get home (& when you approach work as well) & your turbo should be sufficiently cooled.

I also run a larger filter on all my Saabs. They don't add much extra oil capacity (about 8oz), but filtering should be better & dirt-holding volume is roughly doubled. I think it's a great thing to do.

If it were my turbo & I wanted to switch oils between winter/summer seasons, I'd go with 0W-40 when it gets cold instead of 10w30. (That suggestion was only if you weren't comfortable with any xW-40 dual-rated oil.) 0W-40 is also dual-rated, lowers the cold-start end for winter but keeps the hot temp end up for better turbo protection while the engine's at operating temp. Heck, it's good enough for Porsche to keep in their Cayenne turbo year-round!


Originally Posted By: BrianWC
Why would you go and do a fool thing like that?
LOL! It wasn't really by choice. In the middle of the holidays our '99 got totaled by an out-of-towner running a red light. No injuries, thankfully. The '02 was the only thing we could find that was anywhere near the primo condition our '99 was in.
 
Status
Not open for further replies.
Back
Top Bottom