Tire sizes › Mower / garden tractor
How much sealant for an 18x8.50-8 tire
An 18x8.50-8 is about 8.5" wide and 18" tall (calculated from the size). Mower / garden tractor tires are dosed for off-road / low-speed use below.
Sealant per tire, by brand
| Brand | Per tire | Per set of 4 |
|---|---|---|
| Slime | 18.4 oz | 73.6 oz |
| Ride-On | 12.5 oz | 50 oz |
| Berryman | 12.2 oz | 48.8 oz |
| LiQuiTube | 25 oz | 100 oz |
Typical LiQuiTube amounts by vehicle
| Vehicle | Front | Rear |
|---|---|---|
| Riding mower / lawn tractor | 16 oz | 24 oz |
| Zero-turn mower | 16 oz | 48 oz |
A quick reference only. For a 18x8.50-8, go by the size-based amount above (25 oz).
Formulas and sources are on the sealant calculator page. Amounts are each maker's guidance; follow your product's label.