lucas is the one of the best out there. still , points in bottled octane boosters are measured in 10th's!
lucas is one of the very few octane booster that will actually give you 3 octane number increase!
i like all the lucas stuff i use their fuel treatment , because it does work(keeps injectors cleane, lubricated, and prevents buildup)
but, octane boosters are tricky. they are not lying, they just measure it different than the consumer reads!
also , when you read test results read how much fuel they mix it with if they mix with 5 or 10 gallons you will see better results with one bottle , but you might have a 20 -25 maybe 40 gallon tank!