Greetings, everyone. My primary vehicle is a 2004 four-cylinder Camry with 148,000 kilometres, which I purchased privately approximately three years ago after totalling my 2005 3.3 Solara in an accident. I recently purchased a 2000 3.0L Solara coupe from a used car dealership, in excellent condition, with approximately 197,000 kilometres on it, as I have a strong affection for and nostalgia for the Solara. The vehicle was acquired new and maintained consistently, as indicated by the Carfax report, at a local Toyota dealership, but the comprehensive history report commences in 2006. I contacted the dealership (West Coast Toyota) to verify the report's integrity and to ensure there were no irregularities from the auto lot, as I have encountered manipulated Carfax reports at less respectable establishments in the past. The dealership's service records extended barely four years but appeared to validate their accuracy. The vehicle appeared to have oil and filter changes annually, around every 10,000 kilometres. Upon inspecting the oil cover, I observed some muck, which is typical for the 3.0 L engine. I am considering performing an engine flush before transitioning to a high-quality synthetic lubricant. The records indicate that the gearbox oil was flushed at around 88,000 kilometres, but there is no indication of an engine flush. Do you have any opinions on the efficacy of performing a flush on a high-kilometer engine? I am enquiring regarding the timing belt, as there are no records of its replacement, save from documentation saying that the drive belts were inspected and the serpentine belt was replaced at 161,000 kilometres (June 2019). The dealership indicated that the belt was likely replaced at an independent garage due to the high costs associated with their services. The Carfax report indicated that the starter was privately replaced in 2014 at 132,000 kilometres. The automobile appears to be in superb condition. The vehicle operates efficiently, and documents demonstrate that components such as brakes and coolant have been routinely maintained. What are your opinions regarding the engine flush and timing belt? Thank you.