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I will soon have to drain the coolant on my 300TDi, I'm not sure what's in it at the moment but am I correct in thinking that OAT antifreeze should be avoided ?
Antifreeze - 300TDi
- Thread starter tom1979
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use whatever yu want OAT is designed for aluminium systems, but is, now, just a long life antifreeze.
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Cheers I had read about people asking about whether OAT will eat away at the head gasket / metal etc and there was no definitive answer.
jamesmartin
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it definitely wont, its fine to use and has been common in tdis for years
towsey956
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Might be too late but I went thru this...one thing that seemed definite was that they should not be mixed because they go gunky and risk blocking things up. I drained mine from the bottom hose and block drain plug and I flushed it and re-filled and ran with plain water 5 times, the first 3 times showed definite amounts of the pink oat stuff that had been in
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I think it’s got OAT in it already, just wanted to make sure it was ok for this engine as some things say don’t use it on pre-98 engines
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