Will an OAT antifreeze cause problems with my 1978 MGB?

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Will an OAT antifreeze cause problems with my 1978 MGB?

My 1978 MG MGB had an engine rebuild six months ago. An OAT antifreeze was put into it. I have read that this may cause a problem to older engines (water pump seals, gaskets, some solders and metal bearings). Is this likely to be a problem for my engine and should I have it changed for a silicate antifreeze?

Asked on 6 March 2017 by John Serenyi

Answered by Keith Moody

As a rule of thumb, cars built before 1998 generally do not need an OAT-based antifreeze. Speaking from personal experience, I would recommend keeping it old school and using an anti-freeze that is non-OAT based and therefore does not contain silicate.

Tags: maintenance maintenance and servicing owning classic cars antifreeze

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