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653 Posts
Discussion Starter #1
I'm going to be changing the thermostat on my M43 318i, and I have been looking at what coolant to use when filling it back up :embarrassed :thumbsup

I have found that Comma G48 is a decent, cheap alternative to BMW coolant. However looking into it, the only reason there is all this hype about decent coolant is because of alloy corrosion etc.

My question is, with the M43 being such a basic engine is either the head or block alloy? or can I just use a cheaper alternative?!?!! :jaw-dropping :lol

Thanks for any help...
 

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12,946 Posts
ide use BMW stuff it ain't that expensive anyway similar price to shop stuff and you know it has corrosion inhibiters in it...
 
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