Date: Wed, 11 Dec 2002 23:17:04 -0000
From: "Clink" <>
Subject: Re: Castrol Magnatec/Mobil 1 compatibility?

In my field of work (Gas Turbine Engineer) it is a well known fact about mixing synthetic and mineral oil. Areal big no-no. "C Sutherland" <> wrote in message > In article <at6qvk$lbo$>, Pidgeonpost <timhnopsamhr >> writes > >In discussion with someone where I work we got on to oil compatibility, and > >we were both wondering whether Castrol Magnatec and Mobil 1 can be used > >together, both being synthetic. My instinct is not to mix them What says the > >NG? > > > Magnatec is semi-synthetic and no I've never been entirely clear what > that means. I think it's mineral with extra cracking or something. I've > used it for top-ups on turbos when the previous change has been with > full synthetic. Then again there occasions I have done an oil change > with Magnatec or semi-synthetic equivalent and next time gone back to > full synthetic. I've never had any sign of incompatibility or sludge > forming. I have used various full synthetics but never actual branded > Mobil 1 however. > > CS > -- > C Sutherland

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