<VV> Re: Oil use

[Rad Davis]

I can't speak to all the "SuperTech" oils, but I can at least address the 
10w30 Synthetic (silver bottle), which is easily the cheapest 
over-the-counter synthetic oil going - around $2.70/quart most places.

It's a perfectly good oil.  It seems to weep and/or creep more than some 
other synthetics, but it does have all the normal synthetic oil 
characteristics - better cold pumping, better thermal resistance, and 
better viscosity management than petroleum oils.  I ran it for over 180,000 
miles year-round in a Toyota Corolla which was still in good running order 
when I wrecked it at 218,000 miles.  the 1.8L 7AFE engine had the same oil 
consumption and emissions numbers it had at 70,000 miles.  The fuel economy 
went up compared to petroleum just as it is supposed to do when running a 
synthetic oil.  Once I saw the oil study at 
http://neptune.spacebears.com/cars/stories/oil-life.html I decided to 
switch to an extended change cycle.  The last 108,000 miles was done with 
an 8,000 mile change interval.

I suspect that running the SuperTech synthetic in a Corvair would probably 
result in lots of topping up due to oil mist lost through the 
breather.  It's a perfectly good oil otherwise.

- Rad Davis


At 08:51 AM 4/17/2006 -0400, Padgett wrote:
>Speaking of awl, does anyone have any opinion about the so-called "high 
>mileage" oils most brands have now ? Apparently not GF-4 since no 
>Sunburst. Are they any good ?
>
>Speaking of which does anyone know if the "SuperTech" oil sold by WalMart 
>is as good as anything else ? Was told a long time ago that "oil is oil" 
>but is that true today ?
>
>Padgett



>_______________________________________________

__________________________________________________________________________
Rad Davis:                                        rad.davis at comcast.net
Corvairs--65, 66 Corsa coupes, '65 'brier Deluxe   http://www.corvair.org/
Keeper of the Forward Control Corvair Primer: 
http://www.mindspring.com/~corvair/fc1.html
"We did Nebraska in seven minutes today. I think that's probably the best 
way to do Nebraska."                            --Brian Shul, _Sled Driver_