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MG MGF Technical - OAT COOLANT
|just had to replace one of my heater hoses.|
decided to flush the system and refill with the OAT stuff,i'v just been looking on here and there seems to be a few people saying that it could attack the seals and gaskets.....its a 96 mpi and it had the green coolant in.
can anyone tell me if i'v done the right thing ,or should i have stuck with the green stuff????
cheers in advance
|If you have had the system fully flushed and also run the system up to temperature with clean water there should be no problems in changing to OAT.|
The diff. between the 2 fluids are that one is alkali (sp?) and one is acid. The old one has during the time built up a special protection layer on the different metal parts in the system. These layers are now broken down and the acid OAT will start to build new protection layers = some waste of material and a slight chance for new leaks.
But the real benefit is of course longer re-newal of fluid for the cooling system. Some even state "Sealed for life" ( for what thatīs worth ;O)
|Yep, no problem as long as the system was properly flushed through. The coolant is supposed to be changed every 5 years (up from 2(?)) - so I hope that's not quite "for life"!! :) There's an MG service bulletin about it and I had it done on my car ('96 VVC) at the last service.|
i didnt run it up to temp with clean water but i flushed the system for about 15 mins with a hose in the expansion tank ,where can i view the bulletin?
|If you didnīt run the system up to temp with pure water there is still a lot of old antifreeze left! With shut thermostat and other pockets within the block as well as heater matrix there is no chance to totally "clean " the cooling system without running it for some time with water circulating... / Carl.|
|Having read dire warnings about changing to OAT on this BBS, I did a bit of research on the net which seemed to suggest that there had been a few problems, mainly with diesels, after mixing coolants. I flushed my own engine three times with fresh water with a full warm-up in between and so far, no problems.|
This thread was discussed between 20/09/2004 and 22/09/2004
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