I just got a 02 GTX RFI and it didn't take long to run through the rest of the gallon of oil the last owner gave me. The oil resevoir in the ski is mostly full, with a little room at the top. Is that safe to run the ski? I know the manual says that the oil should be topped off about an inch or so from the top of the oil tube, but my order for new oil won't be in until next week and I would like to take the ski out this weekend. Is it alright to use? It sad that its actually cheaper for me to ship 3 gallons of oil across the US then it is to drive to my closest seadoo dealer with their jacked up oil prices.