Propane's higher octane level, higher compression ratios and closed systems, while being environmentally friendly, have another benefit – they lower equipment maintenance costs.

Tests have shown that oil, oil filters, spark plugs carburetors and engines in propane-powered equipment last up to three times longer than gasoline-powered equivalents and that during the lifespan of that equipment, fewer tune-ups are required. At present, new propane mowers can be somewhat more expensive than traditional gasoline equipment, but lower fuel and maintenance costs over the lifetime of the equipment more than balance the equation.