| Fluid Level | |
| Leaking | |
| Looseness | |
| Tightness |
| If you`re carrying a heavier load your required clearance may be more than you think | |
| Driving close to the center line will get you a few more inches of clearance | |
| You should assume that this posted clearance is correct | |
| If you`re carrying a lighter load your required clearance may be more than you think |
| Oxidizer | |
| Flammable liquid | |
| Poison | |
| Corrosive |