Date: Fri, 13 Dec 2002 04:39:59 GMT From: "Morgan Bullard" <mjbullardnopsampammersdie.earthlink.net> Subject: Re: Castrol Magnatec/Mobil 1 compatibility?
While the base oils should be perfectly compatable, the additive packages will be different, and as such, should not be mixed if you can avoid it. Throw an extra quart/litre of your favor motor oil in the car before going on any long drives. If you need to top off, by all means make sure you have the proper amount of oil in you engine, but try to stick with one type, both in the engine, and from oil change to oil change. Different brands of oil will cause your seals to swell differently, possibly causing a leak. (this probably applies to gaskets as well) "Pidgeonpost" <timhnopsamhries45.freeserve.co.uk> wrote in message news:at6qvk$lbo$1nopsamg2.svr.pol.co.uk... > 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? > > >
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