Ppm

Thanks @campbeam and ZZT86 - will insist on Denso Iridium spark plugs.

It was gradual over the time. No engine light is on, but generally runs okay, acknowledging that it is 17 years old and doesn't have the new car "swoosh" sound, but the usual old Camry / Corolla sound, with the belt sound audible.

Thanks - the tyres are relatively new, March 2018 (Bob Janes). Getting a quote for $500 for the checklist that @campbeam posted. Sounds reasonable?

Thanks very much for that very useful checklist @campbeam! Any idea around how much all of that would cost? Not sure if they are a part of the usual package for servicing. The service history has been every 10,000kms or every 6 months (whichever comes first). The last one was done around 6 months ago.

Hi, As a proud owner of a 2002 Avalon VXI, which has done only about 125,000 kms, I've noticed that the mileage has reduced considerably over the past two to three years. For Sydney city driving, including plenty of time on the dreaded inner west sections of the M4 / Parramatta road on the weekends, the beloved Avalon used to give me about 500kms for 58-60L (full tank capacity). This has reduced drastically these days to around 350 kms. Just to add, there have been no signifcant changes to my driving patterns, usage or general traffic conditions on my routes. I'm wondering if there's a specific cause to the decline in mileage, however, I suspect it's very likely just wear and tear or the end of the car's useful life? No one likes paying $80 for fuel on a V6 engine, but I'd perhaps be less grumpier with what the car used to give me in terms of mileage for a similar outlay. Not a car junkie whatsoever, but would really appreciate any tips and service recommendations (e.g. spark plug cleaning, oil changes etc.) that could improve my situation. The trusty Avalon has otherwise been very reliable. Many thanks, P