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My understanding is that, as copper radiators become less common and aluminum more, AFs, including green, are increasingly formulated for aluminum and as a result not as suitable for copper. I used to be in the habit of dumping in a can of anti-corrosion/water pump lube additive between AF...

I have been using Motocraft semi for a while, but recently picked up a bunch of Kendall since it is also a Conoco semi, but is currently about half the price of the MC. Only thing is, it has "liquid titanium" in it, which is apparently Kendalls name for something which may or not be titanium...

Anyone know how Stabil gas stabilizer deals with water? I tested some gas for ethanol, which had been previously treated with Stabil, and instead of the water and gas separating quickly as they normally do, the gas was very cloudly, and stayed that way, clearing a little over the next couple...

I found out a while back that ethanol-free gas was still legal in the next county, so I picked up 10 gallons when I was up that way, and found all my small engines were starting and running better on it. I went back to restock this spring, and found the gas stations which had been selling it...

I have a buddy who is incredibly cheap but pretty clever. He's been reusing Auto RX by draining the oil with the Auto RX in it into a clean pan, straining it (through a coffee filter I think!) and saving it for a second or third use. If he has any ARX left in the bottle he'll add an ounce or two...

Just changed the oil on '97 Saab (non-turbo 4). Thought I was pouring in 5W-30 Motorcraft semi, but as I was cleaning up noticed 2 of the 4 bottles were 5W-20 MC semi I must have grabbed by mistake. What now? Still some hot weather left and Saabs don't like 20. Do I: -leave it in an don't...

I got thinking. Sludge is currently a major and expensive problem for VW, Saab and Toyota, among others. If there are products that can really desludge and engine, without taking it apart, why hasn't any of these companies endorsed them? I know there is a inbred bias against "snake oils", but...

I recall hearing a few months back that Conoco was supposed to be coming out with 10-30 semi synth in the spring, to match the already upgraded 5-30. Just occured to me that its just about spring. But I can't find the publicity release where they announced it. Anyone seen any yet?

Can't remember when it was Conoco said they were coming out with semi-syn 10-30 in the spring anymore, or find the press release that discussed it. Anyone seen any yet?

I just had a head gasket replaced by a very competent Saab dealer. Since some coolant had gotten into the sump, they said they had changed the oil using Saab 5-30 semi but suggested I do it again very soon. I drove 50 miles home and kept noticing a slight chemical, pepperminty smell inside the...

Just checking in at the local (NH) Auto Zone, and the new Motorcraft 5-30 is in, along with some Kendalls. Also noticed the newer GL-4 marked bottles of DC 5-30 says "New higher performance formula" or something like that. Is this the stuff that is rumored to be (almost) all group III?

Anyone have any experience/thoughts on the new Saab synthetic lube for manual trannies? Saab for years used dino motor oil, then finally started using a synthetic for the factor fill in '97 or so. Now they got a new one. Only thing is, it is totally incompatible with ANYTHING according to Saab...

I keep meaning to contact Motorcraft and see if I can find out what the deal is on the 5-20 being labled a blend but the 5-30 not, even though they are both described on the back as being made from "synthetic/hydrocracked base stocks". However I keep putting it off because I dread the getting...

My daughter is off at school in the Claremont CA area. She will be needing a couple oil changes before I get my hands on the car again, and I dread the notion of some QuickeeOil place screwing on a Fram filter and dumping no-name oil in her car (oh, and accidently draining the expensive syn Saab...

Been reading this group for a while, but got some questions I'm having trouble figuring out the answers too: Does hydrocracking make just a better dino, or a semi/near synthetic? Is Chevron supreme conventional dino or hydrocracked? Which is better (in, let's say, a 5-30) - Chevron or...

We just picked up a '97 Saab for our daughter. It has 86K on it, but is one owner and scrupulously maintained by a very reliable dealer. These are OK cars capable of typically long mileages, but have a sludge problem, usually though only if they don't get regular oil changes. The dealer tells...

I have a gallon of Rotella-T synth 5-40 I was going to stick in my daughters '97 Saab 900 for a cross country jaunt, but just realized it's not quite enough for a full fill, and no one locally, including Wally's, has any more. That has me wondering would I do better to forget the Rotella and...