Proper Coolant / Antifreeze Specification: G-40-91 EF, Silicate or non-Silicate?
Proper Coolant / Antifreeze Specification: G-40-91 EF, Silicate or non-Silicate?
I keep having to add coolant now that the car has sprung a leak. Waiting for someone to get back to me about getting the car back in shape I’ve been looking for (cheaper) alternative antifreeze/coolant for our ‘13 GTS, (if the specific model matters I’m not sure). The concentrated gallon I bought from FCP Euro says Formula G-40-91 EF and Part No. 00004330575. It is pink colored. As a little background I have a rainbow of colors to choose from at home, but none of them are pink. Researching there are two pink colored alternatives: Peak OET European non-silicate enhanced and Zerex G-40 Silicate enhanced. From some searching online looks like Zerex G-40 might be the correct one. There were images of a G-40-91 EF bottle with different part number showing silicate enhancement on the back somewhere. For some reason the Peak selection guide shows OET European VIOLET colored coolant (silicate enhanced) as the proper version...
Anyone know which alternative(s) work? Thanks!
Anyone know which alternative(s) work? Thanks!
Last edited by jzchen; Dec 29, 2019 at 07:15 AM.
Found the images of the G-40-91 EF with different part # showing silicate enhancement. Ingredient list is not on my bottle...
http://986forum.com/forums/527274-post15.html
http://986forum.com/forums/527274-post15.html
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