after being disapointed in the engine ice performance in my 954 i read some articles from their site[individual results vary]most people can expect a reduction of 10 to 15 degrees!!1thats alot less than the 50 degrees they claim on their bottle -im tired of all the hype and to add insult to injury it costs over 40$to fill your bike [if its a sport bike it takes more than one bottle]plus its just a propelene glycol mix 50/50 water[with some inhibitors]which probably have nothing to do with actual heat range[i believe they are refering to corrosion inhibitors]sierra coolant which is available at pep boys is a propelene glycol coolant 50/50 water which is basicly the same thing goes for 10.99 for a gallon [not 21.99 for a half gallon -well i feel better now after getting that off my chest-bottom line go to pep boys!!!