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Originally Posted By: salvageyardteen Quote: Nah. My engine and radiator are squeaky clean and were prior to the flush. The only reason I flushed was to get all the "green" stuff out before putting in the "yellow" stuff. Otherwise, I didn't "need" to flush it. The temp decrease is due to the...

http://www.highperformancepontiac.com/tech/hppp_0802_pontiac_performance_engine_oil/index.html

Mopar licensed the ATF+4 formulation out. It monitors those that make it for quality assurance. Any ATF+4 you see on the shelf is going to be legit.

Originally Posted By: doitmyself Quote: “Using ATF+4 ensures a longer transmission life with regular servicing as described in the vehicle owner’s manual.” So, from the statement quoted above, can I infer that without regular servicing, I will be ensured a shorter transmission...

I wouldn't buy anything that has Supertech on it. Go with a quality name brand ATF+4. I use either Mopar or Valvoline, whichever is on sale at the time. It gets changed out every 2 years. Fluid is cheap, a new trans isn't.

Originally Posted By: SecondMonkey Originally Posted By: crashz That looks a little milky. MAybe test it? I looks to me that you might have coolant mixing with the tranny fluid, or water getting in. If that was the case, would the water settle to the bottom after a while in the empty 2 liter...

I only run OEM trans filters.

ATF+4 is a pretty good trans fluid.

Just toss Castrol Syntec 5W40 in that VW and be done with it. It meets the VW specs 502.0 and 505.00. I use it in my Jetta.

http://www.highperformancepontiac.com/tech/hppp_0802_pontiac_performance_engine_oil/index.html

The Castrol Syntec 5W40 meets a wide range of European specs-even VW's 505.00 diesel spec. I use it in in my VW 1.8T.

15W50 would be fine for your Saab.

Originally Posted By: BrianWC Diesel oil fits into this equation because diesel oils still had higher levels of zddp. I cannot recall how much that's changed with the new CJ formulations, though. The newest HDEOs still have high levels of ZDDP-much higher than gasoline API oils.

Originally Posted By: Dyoel182 I've never seen the a 10w30 HDEO as much as they are talked about. Mobil has it and so does Shell. I'm sure others do as well.

Originally Posted By: Gary Allan These are typically engines with higher spring rates. If you've got normal spring rates ...you don't have to worry about it. No, if I think I know what you are referring to. Flat tappet cams/lifters need ZDDP to provide a buffer between direct metal to metal...

I've run HDEO in gas burning engines for years and never had a issue with it. I'll continue to do it until the Feds neuter HDEO to the point that it is no longer beneficial to do so.

HDEO is the only oil I'd ever use in a Jeep 4.0/2.5 simply for the fact these engines use a flat tappet cam/lifters. These parts need the extra ZDDP HDEOs have to stay alive in the long run. I use Rotella 10W30 in my 97 4.0 and in the summer I use Mobil Delvac 1300 15W40 in it.

Originally Posted By: built It has been determined in the SAE paper "Oil Development for Nascar" that overly detergent motor oils can block or "clean" the anti-wear films off of engine parts. Since low detergent packages increase the effectiveness of film formation, racing oils tend to have less...

Originally Posted By: Caiwu I know it is better to use vw502 oil.But that oil is expensive here.Can this car use A3/B3/B4 with shorter OCI?Thank you. Use Castrol's 5W40 Syntec. AutoZone has it. It meets all of VW's oil requirements for gas and diesel engines. I use it in mine.

Dino if you get Shell's Rotella. Originally Posted By: Badlees Originally Posted By: Dyoel182 People seem to like the 10w-30 HDEO. Is that dino or synth? Dino if you get Shell's Rotella version of it.