Klotz Pure Estorlin 10W40 Synthetic Motor Oil - 1 Qt (Case of 10) Suspension Bumper the valve locks are for

the valve locks are for a bigger size stem

Designed for 1500 to 6500 RPM

Our quality is second to none

IMCA Modified

90 mil thick

Klotz Pure Estorlin 10W40 Synthetic Motor Oil - 1 Qt (Case of 10) Suspension Bumper the valve locks are forProduct Description: Motor Oil Pure Estorlin 10W40 Synthetic 1 qt Set of 10 For over 60 years, racers and performance enthusiasts around the world have relied on Klotz to grab the checkered flag. Developing products for the motorsports industry is our passion. The tradition of race testing Klotz products continues to this day. In fact, by the time a Klotz product reaches your engine, its spent countless hours on the dyno and proven on the race track.