I received a box of Opti-2 and Opti-4 oil today from Interlube International
to give out at the Willow Springs race on June 18th.
They are so confident about the Opti-4 oil that they offer to double your
yes, there is Opti -2 oil in the box too as well as Opti-Mizer fuel stabilizer
with Valve Guard and some Interlube Foam Filter Oil