Big Dog Posted November 2, 2015 Share Posted November 2, 2015 I want to put anti-freeze in the cooling system of my newly restored GPW, now while I may sound a bit dense here, which one do I use? Went down to my local halfords to grab some at the weekend and was confronted by numerous different types - silicon based, 'OAT' based and an Evans water free mix. The bloke in Halfords had no idea which one I should use, but did say that nowadays, using the wrong one could cause damage to the engine. Any advice welcome. Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 2, 2015 Share Posted November 2, 2015 Well they still make Prestone (but its not 44 I'm afraid :-D) Don't know how it differs from wartime Prestone. http://prestone.com/?select_region=1 Quote Link to comment Share on other sites More sharing options...
Degsy Posted November 3, 2015 Share Posted November 3, 2015 You can use any type of antifreeze in your jeep but what you must not do is mix different types, severe damage can result. Having said that the basic blue/green coloured cheapest product will be perfectly adequate for your jeep but don't exceed a 50/50 mix. Quote Link to comment Share on other sites More sharing options...
andym Posted November 3, 2015 Share Posted November 3, 2015 The perceived wisdom is that you shouldn't use modern OAT antifreeze in old engines. Stick with a traditional IAT type, usually blue in colour. Andy Sent from my SM-T310 using Tapatalk Quote Link to comment Share on other sites More sharing options...
beepbeep Posted November 3, 2015 Share Posted November 3, 2015 As above, traditional anti freeze! I use Prestone....£12 for four litres from Costco! Quote Link to comment Share on other sites More sharing options...
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