Given that it’s just a small piece of stamped aluminium, a car’s compliance plate is a big deal as it confirms that the vehicle to which it’s attached meets all relevant rules and regulations to be used on the street. The laws vary from State to State, but in WA right now, it seems that replacing a damaged compliance plate with a new one is not permitted. Instead, what you may have to do is to apply for an exemption to have a compliance plate fitted to that particular vehicle.

According to the WA authorities (who I contacted about this) “If a vehicle’s original compliance plate is destroyed or lost, it cannot be replaced, however the vehicle owner can apply…for an exemption from having to fit a compliance plate”. There’s a process to be followed including having the car inspected and, if the vehicle is deemed to qualify for the exemption, a note will be made on its registration record to reflect the fact that it doesn’t require a physical compliance plate. This inspection will confirm that the vehicle is legal and hasn’t been stolen or written-off.

My concern is that it’s something you’re going to have to explain to a buyer when you sell the car on. Even though a car with this exemption is perfectly legal and shouldn’t present any insurance hassles, some buyers might be leery of a car without a compliance plate. For that reason, I’d be doing everything I could to preserve the original compliance plate. Unless there was a fire that melted it, even a bent and buckled compliance plate may be able to be straightened and left attached to the car. That would certainly be my preference.

Mazda recommends fully synthetic for its SkyActiv engines and 5W30 is one viscosity that is listed for this engine. It’s also worth noting that the Mazda engine requires oil that conforms to API (American Petroleum Institute) SL, SM or SN. Although these gradings have an American tag, they’re pretty universal in the industry and denote an oil that is up to a certain minimum standard of protection required by car-makers (Mazda included).

But before I bought any oil, I’d contact the workshop or dealership that did the most recent oil change or service and ask what brand and grade of oil was used. That way, you’re not mixing oils. Different oils have different additives, and mixing them can sometimes cancel out the benefits of these additives.

There may be those reading this who will question whether a new car like a 2019 Mazda should be needing top-up oil between oil changes. But it’s a fact of life that even modern, high-tech engines do consume a little oil between services. Modern all-alloy engines are possibly even a little oil-thirstier than their old-school, cast-iron predecessors. A smart car owner still makes a habit of dipping the engine oil every Saturday morning.

I’d also recommend using a quality, brand-name oil rather than the cheaper, supermarket-branded stuff. Oils ain't oils? Definitely not.

It depends somewhat on the condition of the sand. If it’s well packed and solid all-wheel drive would suffice, but I wouldn’t rely on it on loose, deep sand. For that I would want a proper four-wheel drive.