Subaru Impreza Problems

We checked with Subaru and were told that you should follow the manufacturer's recommendation for engine oil as specified in the owner's manual. Subaru also told us that 0W-20 engine oil is available in Australia and can be purchased through Subaru dealers. They also said that you could rest assured that although the engine will not be delivering maximum power, maximum torque, best fuel economy or best exhaust emissions, no harm will have come to the engine by using 10W-40 engine oil.
 

They are known to wear, but you need to have them properly assessed to confirm that the problem is with the diff. The prices quoted by the Subaru dealer would appear to be reasonable, and their diagnosis also seems reasonable, so I would be taking the car to them before I had a new diff fitted.
 

The tyre man has fed you a line of BS. The is some advantage in running nitrogen in a race car that is operating under extreme duress on the race track where it would be a more stable gas and maintain the pressure better, but there's no advantage of running nitrogen in a road car. I bet he charged you for the gas as well. It might not drop as fast, but the pressure will drop just like it would if you used air, so you still need to check the inflation pressure regularly.

We don’t have ‘lemon’ laws in this country so you need to work through the laws in each state relating to consumer rights, and based on what you say has happened to your car you would appear to have a strong case against Subaru. Before you go that far, however, you should try to resolve your issues through the dealer, and if that fails, through Subaru.

Under the Australian Consumer Law introduced in January 2011, a consumer can request a refund or a replacement for persistent problems if the car doesn’t do the job it’s supposed to do.

If you’ve had paint protection applied your complaint is against the company that did that work, not Subaru. If it were done through the dealer, then you might also have a claim against the dealer. I would be very annoyed with paint protection company for not telling me they have problems with Subaru paint, if that is indeed the case, before they took my money and did the job.

The law allows speedos to read as much as 10 percent fast, which makes yours legal. There's not much you can do about it, other than make mental adjustments as you drive.

Subaru says the belt should be changed every 100,000 km or four years, whichever comes first. If it hasn't been changed since new then it should be changed as soon as possible.