What is a Walnut Blast?
A walnut blast typically refers to a procedure used to clean carbon buildup from the intake valves and combustion chambers of a gasoline engine. This carbon buildup can occur over time as a result of incomplete combustion and the recirculation of exhaust gases in vehicles equipped with direct fuel injection systems.
If you notice symptoms such as rough idle, poor acceleration, decreased fuel efficiency, or a noticeable decrease in engine performance, it might be an indication that carbon buildup has become a problem in your vehicle's engine. However, not all vehicles will require a walnut blast, as modern engine designs and fuel additives can help mitigate carbon buildup to some extent.
It's important to consult your vehicle's owner's manual and follow the manufacturer's recommended maintenance schedule. Some manufacturers might suggest performing a walnut blast at certain mileage intervals or when specific symptoms arise. If you're unsure about whether your car needs a walnut blast, it's a good idea to consult a qualified mechanic who can assess your vehicle's condition and recommend appropriate maintenance procedures.
At Matipo Garage, located in Addington, we have the expertise to help you decide if your vehicle requires a Walnut Blast and the experience to perform it. Contact us on 03 348 5358 or Email us to discuss admin@matipogarage.co.nz
Time to Tickle Your Thinker 🧠
If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?
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Poll: As a customer, what do you think about automation?
The Press investigates the growing reliance on your unpaid labour.
Automation (or the “unpaid shift”) is often described as efficient ... but it tends to benefit employers more than consumers.
We want to know: What do you think about automation?
Are you for, or against?
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9.6% For. Self-service is less frustrating and convenient.
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43.2% I want to be able to choose.
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47.2% Against. I want to deal with people.
Have you got New Zealand's best shed? Show us and win!
Once again, Resene and NZ Gardener are on the hunt for New Zealand’s best shed! Send in the photos and the stories behind your man caves, she sheds, clever upcycled spaces, potty potting sheds and colourful chicken coops. The Resene Shed of the Year 2026 winner receives $1000 Resene ColorShop voucher, a $908 large Vegepod Starter Pack and a one-year subscription to NZ Gardener. To enter, tell us in writing (no more than 500 words) why your garden shed is New Zealand’s best, and send up to five high-quality photos by email to mailbox@nzgardener.co.nz. Entries close February 23, 2026.
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