Les Brock Posted April 19, 2013 Share Posted April 19, 2013 So the time has come to finally fill up the truck for the last time, well........... hopefully at least for a bit with coolant What's the latest with using OAT (long life) orange stuff in a 2000Tdi ? Yey or nay or stick with the blue stuff ? Quote Link to comment Share on other sites More sharing options...
tacr2man Posted April 19, 2013 Share Posted April 19, 2013 OAT is better esp in ali components , also longer service life, but changing you need to get rid of all the old "blue" in the whole system as you can get chemical reactions that are not very beneficial Quote Link to comment Share on other sites More sharing options...
Les Brock Posted April 19, 2013 Author Share Posted April 19, 2013 Well I ask... as I seem to have 10 litres of the stuff brand new I have a Alloy Rad and Alloy Laminova as well ........makes sense to use it if I can , if its going to eat the gaskets away .... then blue it is Everything is deffo clear of anything as its been bone dry for 3 years at least Quote Link to comment Share on other sites More sharing options...
dirtydiesel Posted April 19, 2013 Share Posted April 19, 2013 It won't eat the gaskets away, if you mix red and blue they react with one another and create a horrible brown gunge that clugs up your cooling system. so just make sure you thoroughly flush the cooling system, back fushing with some compressed air assistance can be very effective. Quote Link to comment Share on other sites More sharing options...
tacr2man Posted April 19, 2013 Share Posted April 19, 2013 as DD says you shouldnt have a problem , Quote Link to comment Share on other sites More sharing options...
Aragorn Posted April 20, 2013 Share Posted April 20, 2013 There was a post over on LRO about OAT in older cars, its probably worth a read to see if it affects you. http://www.lro.com/forum3/viewtopic.php?f=18&t=59554 Quote Link to comment Share on other sites More sharing options...
Dads Toy Posted April 20, 2013 Share Posted April 20, 2013 I'd consider using the "waterless" stuff next time - BUT I can't find anyone who's used it. The spec sounds good but the ads always do, I just wanted someone who's used it to say what they thought. Malcolm Quote Link to comment Share on other sites More sharing options...
western Posted April 21, 2013 Share Posted April 21, 2013 I use it in my 200tdi hasn't caused me any problems. Quote Link to comment Share on other sites More sharing options...
SteveG Posted April 23, 2013 Share Posted April 23, 2013 I'd consider using the "waterless" stuff next time - BUT I can't find anyone who's used it. The spec sounds good but the ads always do, I just wanted someone who's used it to say what they thought. Malcolm Reading the US mags they seem more popular there. Cool 180 is most common and you see it being used in 4x4's to supercars in US. you have to use a prep flush first before use though and works out 2-3x more expensive than longlife Quote Link to comment Share on other sites More sharing options...
rick Posted April 28, 2013 Share Posted April 28, 2013 I ran OAT for years in a Tdi no problems, it came filled from the factory with it. I've since converted to Cummins PG Platinum HOAT, just standardising across the board, could get it cheaper and less possible problems with a hybrid OAT. I'd never go waterless, water has a far higher specific heat capacity than almost any other liquid and far higher than either ethylene or propylene glycol, which is why it's always recommended to never exceed 50% by volume with EG or PG coolant. I just don't buy the claims of waterless coolants. Quote Link to comment Share on other sites More sharing options...
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