synthetic oil bliss

[Bryan Rodgers]

Brings to mind a question that's probably been asked again and again: is one
synthetic oil better then the next?

B
1986 4000s


-----Original Message-----
From: Stephen Bigelow [mailto:sbigelow at sprint.ca]
Sent: Wednesday, October 18, 2000 4:33 PM
To: quattro at audifans.com; rplines at pacifier.com
Subject: Re: synthetic oil bliss




Last oil change he switched from Mobil 1 10-30, to Castrol
> 5-50 thinking it would be easier on the car a start-up. I would agree.
But,
> a few weeks ago he started getting lifter noise at idle once the motor
> warmed up!? Turns out the oil wasn't think enough when hot... ...he
switched
> back to 10-30, and the problem has been fixed.
>
> weird huh?

Yes, especially in light of 50 being thicker than 30 when hot.