That seems awful expensive for Super M.If you buy small its about the same..$10 for a quart of Lucas and $12 for a liter of Super M. Gallons is different i pay $29 for a gallon of Lucas and Super M doesn't come in 1 gallon its 1/2 gallon or 5 gallons. I paid $26 for a half gallon of it. So basically $30 a gallon for Lucas or $52 a gallon for Super M. I see no added benefit using the Super M so its back to Lucas.....again