<VV> Selecting an oil

[Tony Underwood]

At 08:23 hours 05/27/2006, Sethracer at aol.com wrote:

>  I have run almost
>all brands of the Synthetics - excluding the "semis" of the last few years. I
>have never been disappointed. Of course, the last oil that really 
>disappointed
>me was the Castrol 20-50 that I tried in a road race car. (Circa 1975) It
>foamed to beat heck!


That's not all.    It took little to no time at all in order for the 
stuff to revert to its "lowest" viscosity, looked like water draining 
out of the pan when I changed it because the oil pressure in the 
engine dropped from 70 lbs hot (with Kendall GT-1 10-40) to around 40 
lbs hot with the Castrol 20-50 "race" oil.   It was terrible stuff 
and I didn't trust it in the engine at all.    I gave it a fair 
chance; next time I changed oil (Kendall again) I tried it again, 
same results, looked like water and pressure dropped around 30 
lbs.   I never used it again.    I'd had people (mostly smallblock 
Chevy owners) swear that it was the best oil around.   Not sure where 
they got the idea unless they were parroting what they'd been told by 
some guru or something, because the stuff was plain 
untrustworthy.   This was in a 426 Mopar.   And no, the engine wasn't 
*that* loose; the Kendall 10-40 worked out just fine, should have 
stayed with it to begin with and not even tried the Castrol.


I'm sure it got changed/improved later on down the line but in the 
mid-70s the stuff was flaky.   Disappointing.


>  It looked like a Chocolate Float was coming out of the oil
>filler tube!  Valvoline Racing oil replaced it and worked fine. This was in a
>racing application.- Seth Emerson



No issues with Valvoline oil either.   :)



tony..