Re: 90 TLR oil useage
I'm not sure if there are any specific numbers for that, but my 90C Yamaha premix motor uses about 1 pint of outboard motor oil per 6 gallons of gas and I would expect that your oil injected motor would use something less than that, depending on throttle speeds/RPM's. If you did a lot of low speed, idling type of running then your oil usage could be very low. Hope this is at least helpful in answering your question.
