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I use peak violet european formula in my mk8 R.
I use Peak, and I think they recommend the violet stuff.
I just use peak pink made for Alfa Romeo and European vehicles overall and it works fine!
I've mixed Peak Violet in with the OEM G12+. My car ran normal for several thousand miles like that.
coolant is always best. I would get rid of the green coolant, flush it all out and replace with something better. I use Peak Final Charge in everything.
Ive been using peak for a while across a 2016 jetta when i owned it and now in my 2021 tiguan. Works fine
Had good luck with their older Asian green, Toyota pink, and Newer Asian Blue in my son's Subaru.
I have some Peak "original equipment technology" for European vehicles, "violet." It is pre-diluted. It seemed to immediately blend right in, if that means anything.
Mods: None, staying showroom stock. TCL Buyers Guide Negatives / future ownership issues: A) Valley Plate coolant leak: Look for pink crystals (dried coolant) underside of engine near where transmission meets up w engine. Also check upper radiator hose where it connects to radiator. Workaround: 50k/5 year coolant maintenance.
I paid for a coolant flush and the mechanic put back in peak 50/50. The orange kind not the gold. At least its not mixing with the HOAT but im pissed
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If choosing antifreeze across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare antifreeze across these categories:
In March 2026 on PartReview, antifreeze PEAK were overall better than OEM Toyota.
In March 2026 on PartReview, antifreeze PEAK were overall more popular than OEM Toyota.
By vote balance, antifreeze PEAK surpassed OEM Toyota:
By number of reviews, antifreeze PEAK surpassed OEM Toyota:
In March 2026, according to PartReview, antifreeze PEAK and OEM Toyota have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
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For example, comparisons of antifreeze PEAK with: Prestone, Pentosin, VALVOLINE, OEM BMW, OEM Volkswagen, OEM Honda, OEM Mazda.
Also available: comparisons of antifreeze OEM Toyota with: Prestone, Pentosin, VALVOLINE, OEM BMW, OEM Volkswagen, OEM Honda, OEM Mazda.
You can also see who is better among other antifreeze manufacturers: PEAK or Prestone, Pentosin or Prestone, Prestone or VALVOLINE, Prestone or OEM BMW, Prestone or OEM Volkswagen.