16:1........................1 gallon gas, 8oz oil
20:1........................1 gallon gas, 6.4oz oil
32:1........................1 gallon gas, 4oz oil
40:1........................1 gallon gas, 3.2oz oil
50:1........................1 gallon gas, 2.56oz oil
100:1(if you dont like your engine).....1 gallon gas, 1.28oz oil
| SPECTRO PRE-MIX RATIO CHART | |||||||||||||
| GALLONS OF FUEL TO MIX | |||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | ||
| QUARTS OF FUEL TO MIX | |||||||||||||
| 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | ||
| OUNCES OF FUEL TO MIX | |||||||||||||
| Oil to Fuel Ratio | 64 | 128 | 192 | 256 | 320 | 384 | 448 | 512 | 576 | 640 | 704 | 768 | |
| 20 | :1 | 3 | 6 1/2 | 9 1/2 | 13 | 16 | 19 | 22 1/2 | 25 1/2 | 29 | 32 | 35 | 38 1/2 |
| 24 | :1 | 2 1/2 | 5 1/2 | 8 | 10 1/2 | 13 1/2 | 16 | 18 1/2 | 21 1/2 | 24 | 26 1/2 | 29 1/2 | 32 |
| 28 | :1 | 2 1/2 | 4 1/2 | 7 | 9 | 11 1/2 | 13 1/2 | 16 | 18 1/2 | 20 1/2 | 23 | 25 | 27 1/2 |
| 32 | :1 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| 36 | :1 | 2 | 3 1/2 | 5 1/2 | 7 | 9 | 10 1/2 | 12 1/2 | 14 | 16 | 18 | 19 1/2 | 21 1/2 |
| 40 | :1 | 1 1/2 | 3 | 5 | 6 1/2 | 8 | 9 1/2 | 11 | 13 | 14 1/2 | 16 | 17 1/2 | 19 |
| 44 | :1 | 1 1/2 | 3 | 4 1/2 | 6 | 7 1/2 | 8 1/2 | 10 | 11 1/2 | 13 | 14 1/2 | 16 | 17 1/2 |
| 48 | :1 | 1 1/2 | 2 1/2 | 4 | 5 1/2 | 6 1/2 | 8 | 9 1/2 | 10 1/2 | 12 | 13 1/2 | 14 1/2 | 16 |
| 50 | :1 | 1 1/2 | 2 1/2 | 4 | 5 | 6 1/2 | 7 1/2 | 9 | 10 | 11 1/2 | 13 | 14 | 15 1/2 |
| 52 | :1 | 1 | 2 1/2 | 3 1/2 | 5 | 6 | 7 1/2 | 8 1/2 | 10 | 11 | 12 1/2 | 13 1/2 | 15 |
| 56 | :1 | 1 | 2 1/2 | 3 1/2 | 4 1/2 | 5 1/2 | 7 | 8 | 9 | 10 1/2 | 11 1/2 | 12 1/2 | 13 1/2 |
| 60 | :1 | 1 | 2 | 3 | 4 1/2 | 5 1/2 | 6 1/2 | 7 1/2 | 8 1/2 | 9 1/2 | 10 1/2 | 11 1/2 | 13 |
| 64 | :1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 68 | :1 | 1 | 2 | 3 | 4 | 4 1/2 | 5 1/2 | 6 1/2 | 7 1/2 | 8 1/2 | 9 1/2 | 10 1/2 | 11 1/2 |
| 72 | :1 | 1 | 2 | 2 1/2 | 3 1/2 | 4 1/2 | 5 1/2 | 6 | 7 | 8 | 9 | 10 | 10 1/2 |
| 76 | :1 | 1 | 1 1/2 | 2 1/2 | 3 1/2 | 4 | 5 | 6 | 6 1/2 | 7 1/2 | 8 1/2 | 9 1/2 | 10 |
| 80 | :1 | 1 | 1 1/2 | 2 1/2 | 3 | 4 | 5 | 5 1/2 | 6 1/2 | 7 | 8 | 9 | 9 1/2 |
| Oil to Fuel Ratio | OUNCES OF OIL TO ADD | ||||||||||||
| 16 | oz.=1 Pint | TRICK FOR FIGURING 32:1 RATIOS IN YOUR HEAD: | |||||||||||
| 32 | oz.= 1 Qt. | CONVERT THE FUEL FROM GALLONS TO QUARTS, | |||||||||||
| 128 | oz.= 1 GAL. | THEN USE ONE OUNCE OF OIL FOR EVERY QUART. | |||||||||||