Racing Oils 10920 Quick-2-Mix Oil/Gas Ratio Mixing Bottle - 20 oz. Capacity

Excellent, have always used these since they came out, the days of measuring cups are no longer needed, easy to see measurements and adjustment for your mixture, I have noticed they run about 1oz lower then the reading, so just adjust accordingly to what you need, I always keep 2 on backup, I only race and ride 2 strokes AAA+++

Works extremely well and allows me to finally make the proper ratio of gas to oil without guess-estimating and watching my machines run poorly. Highly recommend and wish I had done this ages ago.

I had lost my old RatioRite mixing beaker and needed a replacement. I noticed this one in the listings and decided to give it a try b/c it has the screw on lid. What's nice about the lid is that it helps to keep the left over oil residue in the container while also keeping dust out. After using it to make premix, I pour a little gas in there, put lid on, shake it up, and pour out into the gas-can, so that gets it pretty cleaned out and ready for the next use. I can't say I measured out a quantity of oil with lab equipment to compare to the markings on the bottle, but I haven't blown up my motor yet, so I figure its marked close-enough. One suggestion for a future improvement would be to find a way to secure a lanyard to the cap + bottle so it can't wander off and get lost. I'm just figuring one day, I'll be out mixing gas at a gas-station, and lose the lid b/c I'm in a hurry. It'll be my fault, but if the lid was attached, it would keep me from being stung by my own carelessness. I'm going to see about fixing a cord to it somehow myself. I think maybe a small swivel-nut type of thing might do it... glued to the lid with some shock-cord to tether with. Or hell, maybe just glue some magnets to it, one in the cap, one in the base of the bottle... stick cap to base while using. Might be a middle-ground fix b/c sometimes a cord gets in the way of rotating-things. Im way off topic now... lol... y'all have fun, ride safe!

Way easier to measure the oil for my boat.

Perfect

Measurements are off as stated by other reviewer. I checked all the oz measurements with water and the correct level was slightly less than what's on the bottle. My results were the same as their picture I have attached. You will be putting slightly too much oil into your fuel using their levels.

Nice and easy to use. Sticker comes off with hair dryer and some rubbing alcohol.

Use it all the time I lost one so I had to order another one