whats this

What does VRO and OMS stand for.I was checking spark plug chart and it had a note about using different plug for engine with VRO/OMS.

Re: whats this

VRO = Variable Ratio Oiling<br />OMS= Oil Metering System

Re: whats this

Thanks.<br />I just registered on this site yesterday.Man this is a great forum you guys have helped me alot already.

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