Enter the ratio value or accept the default. I’ve got a 1966 6hp Johnson boat motor what’s the mixture for gas. Two-stroke (sometimes called 2-cycle) engines run on a mixture of gasoline and oil. Websites By George
Find the correct oil/gas ratio for your particular engine. The Castrol 2T RATIO app is a two stroke ratio selector that simply helps you get the right fuel-to-oil mix instantly for your 2-stroke engine. If you cannot locate either, but know the equipment’s age, refer to the following: most handheld equipment manufactured before 2003 requires a 32:1 ratio; most handheld equipment made after 2002 uses a 40:1 or 50:1 ratio. It depends on what your recommended ratio is. The manufacturer of an older 2 stroke engine might have recommended a gas to oil ratio of 16:1 or 32:1, but a similar engine today with better quality oil available and better engine technology can get away with mixing a ratio of 40:1 or even 50:1. You'll have to add ((128 × 1) / 40) = 3.2 US ounces of oil. Instructions: Choose the units of fuel either gallons or liters. This gas is much better but you may also need to add a little octane booster since many only sell 87 octane ethanol free gas. Knowing the proper way to mix your fuel is the first step in keeping it running strong and long. Example 2: You've got 5 UK gallons of gas, and your engine needs a gas/oil mix of 32:1. Stir or shake the container to mix the oil and gas. Theses are our recommendations though: For a 50:1 ratio of gas to oil, use 2.6 fluid ounces of oil per gallon of gas. Some outboards have a separate tank for the oil which will either be an internal tank attached to the outboard under its hood or an external tank. Please check the recommendation and then the chart should help you see the answer! Mixture chart for 50:1 ratio 1 gal gas to 2.6 oz oil 2 gal gas to 5.1 oz oil 3 gal gas to 7.7 oz oil 4 gal gas to 10.2 oz oil 5 gal gas to 12.8 oz oil 6 gal gas to 15.4 oz oil Most portable out board tanks are 6 gallon tanks. I have been told that the newer 50:1, 2 stroke oil can be used in older engines at the lower ratio of 50:1. Use the mixture within 30 days or add fuel stabilizer to extend the shelf life. distinction between ratio and proportion eluded me, 4400 S Kildare Ave Chicago, IL 60632 Technical Support: 800.367.3245 Corporate: 773.376.4400. Do NOT add oil to the fuel of 4 cycle engines. Avoid potential performance issues from the wrong fuel-to-oil with the easy to use Castrol 2T The chart below can help you figure out the correct measurements to use. Example 1: You've got 1 US gallon of gas, and your engine needs a gas/oil mix of 40:1. 2-Stroke Oil Mix Calculator. Two-stroke (sometimes called 2-cycle) engines run on a mixture of gasoline and oil. Engine 2 has ran out of fuel, and you would like to use the fuel in engine1's tank. The answer will appear below the calculate button. For a 40:1 mixture, use 3.2 fluid ounces of oil per gallon of gas. Engine 1 requires less oil to be added per gallon than does engine 2. You have two 2-cycle engines, that have different oil/gas mix ratios. The internet provides a mountain of information on older engines, so even if you don't have a engine service manual you can almost always find the information online. Filling your gas container half way with fuel, than add the oil before filling the container the rest of the way helps to mix the gas and oil. Ardgowan Street, Port Glasgow, 16:1 24:1 32:1 40:1 50:1 16:1 24:1 32:1 40:1 50:1 Litres Millilitres of Oil Imp Gal Imp Ounces of Oil 5 300 200 150 125 100 1 8.0 5.5 4.0 3.5 2.5 10 625 425 300 250 200 2 … In the Mix All STIHL gasoline-powered equipment uses a 50:1 gas and oil mixture. I have an early 70s chain saw with a recommended mixture ratio of 20:1. The table below will give you the correct measurements to hopefully prevent any problems. The ratio needed in the 2-cycle oil mix for your engine can be found in the equipment operator’s manual or on the engine label. ©2020 The Small Engine Shop, Excess Watts Calculator for Powering Motorcycle Accessories, Calculate Time and Amps to Charge a 12v Battery, Calculator for Ohms Law and Power (watts) Formula, Free Website for Motorcycle & Small Engine Technicians, Motorcycle Tune-Up & Maintenance Specifications.