Date: Tue, 18 Sep 2001 03:27:38 +0300 From: "Mika Tamminen" <mickeynopsami.fi> Subject: Re: Does anyone use synthetic oils?
Mobil1 10-40 plus Friction elominator X1-R saved my engine on a raod race with last six laps only 20 psi pressure at 8000 rpm and no water because of a failed gasket and I went all the 10 lap race with this blown gasket.... The engine is rebuildable still and crank has no wear on it. Car in question is a 1972 Alfa Romeo 2000 GTV Gr.1 My Alfa 75 1.8 Turbo uses Mobil 1 but it gets worrying thin on track days and hard running...boost is a t 1.3 bar. My Trans Am GTA uses Mobil 1 only as does my 1984 SS El Camino But they might all change to Castrol synthetic products as that holds it¥s viscosity better than Mobil1 "Proconsul" <nospamnopsamam.com> kirjoitti viestiss” news:QtPo7.4524$RS3.2919815nopsam1.elcjn1.sdca.home.com... > Mobil One is an exceptional product that anyone would be wise to use - no > matter what anecdotal warnings you will certainly get. I'm persuaded that > it's a benefit in any car - except for museum pieces....:) > > PC > > "ajames" <ashleynopsamifi.co.uk> wrote in message > news:tq778to9ecqp47nopsam.supernews.com... > | Rolls Royce recommend Esso Ultron synthetic oil for all their cars that > have > | had an engine rebuild. They say that, as a result, the engine may never > | require another re-build. They do not recommend it for pre war cars that > | have not had a rebuild. Those who are interested should obtain technical > | bulletin no. 5 from the club shop and read what the company's chief > engineer > | has said together with some oil company chemists. > | > | BMW also recommend it Mobil 1 synthetic for all their cars having tested a > | 3.25i for 1,000,000 miles and found the engine still within tolerance. > | > | Appropriately used synthetic oils do have substantial advantages over > | conventional ones. Do not listen to anecdotal "evidence" contact > | manufacturers of the oil and the vehicle manufacturers to find out the > | facts. > | > | The only warnings against synthetic oil are that it might dissolve early > | rubber oil seals and that it is inadvisable in older engines where the oil > | pump is much above the oil and may have difficulty priming with thin oil. > | > | Ashley James > | Turbodave <yeahnopsamt.com> wrote in message > | news:Apz77.54899$Mb7.1782728nopsam.direct.ca... > | > First off , sorry about the HTML , I actually sent it in plain text but > it > | > ended up changing somewhere !!??. > | > I can not remember the brand I was using, it was quite a few years ago. > | > When I talked to the guy at Crower he did not mention anything about > | brands > | > either. > | > After two cams wearing out , I did not push the issue, just switched to > | > standard oil. > | > Just a note , it could have alot to do with the Rockwell hardening of > the > | > cam lobes as apposed to the roller, if they are too far away from each > | other > | > in hardness it could excelerate the problem, I know the rollers on the > | Fords > | > are really hard. > | > If you have a roller cam, and have the motor apart in the future it is > | > worth a close inspection of the cam lobes to be on the safe side. > | > Dave. > | > > | > > | > life_speednopsamo.com wrote in message ... > | > >Interesting story. Were the roller cam problems from one particular > brand > | > of > | > >oil? I know Redline synthetic is commonly used in race applications > | > >including roller cams, but I've not heard of problems. > | > > > | > >- Lifespeed > | > > > | > >In alt.autos.turbocharged Turbodave <yeahnopsamt.com> wrote: > | > > > | > >: Well while we are on the subject I learned the hard way that = > | > >: synthetic oil is actually to slippery in some cases as in on roller = > | > >: camshafts, I was having trouble with wiping out the lobes in a short > = > | > >: period of time, finally got the answer from the guy who machines my > | race > | > = > | > >: motors/ and then backed up by one of the tech people at Crower.. , it > | is > | > = > | > >: so slippery that the roller on the lifter will not turn as it is > going > | = > | > >: up the ramp for a short duration, the reason is the inside pin on the > = > | > >: roller has a higher friction no. than the outer part of the pin that > = > | > >: touches the cam lobe creating this skid area eventually wearing out > the > | = > | > >: lobe. > | > >: Just something I have come across, I also feel that a turbo with > = > | > >: anything less than perfect seals is more likely to leak with > synthetic. > | > >: Just my opinion on the latter part though. > | > >: Dave . > | > > > | > > > | > >>>>>>>>>>BIG HTML SNIP>>>>>>>>>> > | > > | > > | > | > >