Misfuel Insurance Claims vs Paying Out of Pocket: What to Choose

You've just realised you've put petrol in your diesel car at the Z station, or diesel in your petrol vehicle. After the initial panic subsides, you're faced with an important decision: should you claim through your insurance or pay for the misfuel recovery yourself?

The answer isn't always straightforward, but understanding the key factors will help you make the right choice for your situation.

Most comprehensive car insurance policies in New Zealand do cover misfuelling, but there are important considerations. Your policy excess is the first factor – if it's $500 or higher, and the misfuel recovery costs less than this amount, claiming makes no financial sense. You'll pay the full excess and still have a claim on your record.

The type of misfuel matters significantly for costs. Putting a small amount of petrol in a diesel car typically costs $300-600 to resolve if you haven't started the engine. However, if you've driven the vehicle or put diesel in a petrol car, costs can easily exceed $1,500 due to more extensive fuel system damage and complex repairs.

Claiming through insurance also means accepting a claim on your record, which can affect your no-claims bonus and potentially increase future premiums. Some insurers may not count misfuel claims against you, but this varies between providers like AA Insurance, State, and Tower.

Time is another consideration. Insurance claims involve paperwork, assessments, and potentially longer resolution times. Paying directly often means faster service and immediate resolution.

Generally, it makes sense to claim when repair costs significantly exceed your excess (by at least $200-300) and you're comfortable with a claim on your record. Pay out of pocket when costs are close to or below your excess, or when you want to protect your claims history.

What to do right now

If you've misfuelled, don't start your engine. This is crucial – starting the engine circulates contaminated fuel and dramatically increases repair costs. Stay calm and call for professional help immediately.

Get a quote first, then decide on insurance. Most misfuel recovery services can give you an estimate over the phone based on your situation.

EEK Mechanical dispatches tow trucks 24/7 across New Zealand for misfuel recovery. We'll collect your vehicle and transport it to a certified workshop for proper fuel system cleaning. Call us on 0800 769 000 for immediate assistance and a no-obligation quote to help you decide the best approach for your situation.