Valvoline - $5/qt
Red Line Syn - $8 ($50 more per oil change)
Royal Purple - $12 ($112 more per oil change) Wow, $200 for an oil change!
I said this on another thread, it costs a ton of money to make oil purple as opposed red, green or orange. are you sure that the valvoline isn't vr1, last time I checked valvoline convent. racing was about $9.00+, and VR1 ain't what it once was.