Some boat owners will take the trouble to use fuel additives to protect their gas from deteriorating but overlook a leading cause of fuel contamination.
													
																	Marine gas cap. 
									
	
		
	
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																	Water seeping in from failed boat gas caps. 
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																	Fill the tank slowly to avoid spilling fuel into the boat s bilge or into the water. 
															
													
									
	
		
	
																	When it s time to fill those tanks with fuel it s helpful to have a properly labeled marine fuel fill cap to make sure you re filling the right tank. 
																	2 1 out of 5 stars 3. 
																	And don t top off the tank. 
																	Leave room for gas to expand. 
															
													
									
	
		
	
																	Use an oil absorbent pad to catch drips or spills. 
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																	Wipe up any spilled fuel. 
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																	After fueling put the cap on tightly to keep vapors from escaping.