For best guidelines, please see your owner’s manual. It will provide complete information regarding engine maintenance, service, and safety. We recommend checking the oil level every month at minimum. If your golf cart is used often, you’ll want to check on it more than that. You’ll need to replace your engine oil and filter semi-annually, generally once it hits around 125 rounds or 600 miles of usage. For new engines, your initial oil change should be after 8 hours of run time. Use 10W-30 oil for your golf car.