I've noticed pressure differences between different brands of 20W50. I swear
there's even a difference in how fast they pour out the bottle. Even though
they're all 20W50, they don't seem to have the same viscosity. (Well, maybe
they do under some special test condition.) I wouldn't assume that higher
pressure means superior oil. Or, does it?
Bob Donahue (Still stuck in the '50s)
Email - bobmgtd@insightbb.com
52 MGTD - NEMGTR #11470
71 MGB - NAMGBR #7-3336
----- Original Message -----
From: "Brinkman, Gerardo V" <GB127167@teradata-ncr.com>
To: "The MG List" <mgs@autox.team.net>
Sent: Wednesday, March 19, 2003 12:15 AM
Subject: Oil Pressure weirdness
> Looks like I fell for the Castrol marketing. I have been using Syntec
> 20/50 for more than 5 years on my B. Always been happy, good oil
> pressure, almost no leaks, no reason to change........
>
> Then I saw the new "High Mileage" oil from Castrol - "specially formulated
> for cars with more the 75,000". So I changed from Syntec to the new oil
> on Friday night.
>
> Well, Saturday was a long drive in the car (200 miles at 75-80mph - isn't
> overdrive great !!) .
> Running oil pressure is down by 10psi and idle oil pressure is down by
5psi.
>
>
> Anybody else see this happen with this new oil ?
>
> Gerry
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