![]() ![]() PRESTONE® 50/50 preluded DEX-COOL extended life ![]() PETROL® Antifreeze Concentrate / Antifreeze G 11 TEXACO ® Havoline Extended Life Antifreeze I never use anything Shell but they seem to be popular and available. Based on the results of testing under various climatic conditions, it has been demonstrated that Evans is not necessary for the safe operation of the CTLS.<<Ĭoolant approved, just a summary. TheĪdvantages offered by this fluid are negated by sustained operational If in doubt, the mixture should beĬompletely drained off and replaced.>Warning:įlight Design advises against the use of Evans coolant. Here are some notes, and types of coolant, approved for FD CTLSi:Īnti-freeze from different manufacturers must not be mixed as they may It's also a faff and considerably more expensive which makes it very difficult for me to see what the appeal is.Given all the input from A&Ps and other owners the conclusion is that the best thing to do, if you cannot get the same exact type of coolant to add to the proper level, is to Emty, drain all existing coolant, refill with distilled water bring to operating temps, drain and refill with an approved brand that is available in the good ol USA. Unlike other unnecessary aftermarket "improvements", you and your friends can't even see it or hear it to appreciate its other qualities. It can mean the exact opposite because it could be a symptom of poor heat transfer from metal to coolant or within the coolant itself.īesides, if an engine is designed to be run on an antifreeze/water mix then that's what it should be run on - even if it is not the "best" coolant when assessed on different criteria. This does not mean that the metal temperatures are more stable or lower. if its temperature is more stable or measures lower than a conventional coolant in the same application. A badly performing coolant can appear to be doing a good job e.g. Unless you measure metal temperatures in multiple positions directly you cannot know how well a coolant is performing. As well as masking potentially serious engine problems there were issues with heat transfer from metal to coolant and heat capacity of the fluid itself IIRC - I could be wrong on that last point so don't quote me and I'll update if I ever find/remember to look up my notes (It's also possible that the formulation has changed over the years so I should probably check that too). And by worse I mean it had the potential to do harm while providing no worthwhile benefit. I can't remember the details without looking back at my notes but I do remember concluding that it was worse than a regular antifreeze/water mix. ![]() I looked in to this some time ago and decided it was not for me either as an "improved" coolant for a modern vehicle or as something to mitigate against deficiencies in older vehicle cooling systems. I am now wary of changing to waterless coolant because of the potential flammability combined with the mk3 engines issues and im wondering if it would be a recipe for disaster, literally a ticking fire bomb ! Obviously its a mod that would void any engine warranty, so im not debating that.ĭoes anyone have any previous experience of waterless coolants or additional information that can add to this topic ? All pro and cons welcome.Īdmin: I posted this initially in the open section to get the ball rolling, but admin will move to the relevant section within technical, the section I think this would fit under looks abit of a non-used section atm though. ) Obviously the flammability issue touched upon for waterless coolants is my main concern particular because of the mk3 engine issues / open deck design / coolant leaking issues / head gasket failure / blocks cracking etc etc. In counter to this, if you read the information on the Evans website, its states that although under certain lab conditions propylene glycol can become flammable, but in real world situations it is considered no more flammable that traditional OEM water diluted coolants ( which themselves can be flammable once the water has been evaporated off in high heat situations. However after doing abit more research I was abit shocked to learn that waterless coolants have been banned from certain circuits / competitions as some vehicle fires have been attributed to engines using it. Waterless coolants are made from propylene glycol, traditional coolants diluted with water are made from ethylene glycol. In addition to the regular benefits of waterless coolants over OEM coolants, one of benefits that is worth mentioning particularly in the MK3 case is that it mitigates any potential issues of engine block corrosion via electrolysis arising from unintended electrified coolant. I am considering changing the OEM coolant to Evans Power cool 180 waterless coolant.
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