For most recent cars that would be a waste of money. I keep cars 12-15 years, never do that, never had a problem.
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That’s the way I thought and operated in. I made an appointment at the Acura dealer to have the coolant and thermostat replaced. After going over it they said they never had a thermostat go bad but they could order one if I insisted. Rather they said just wait for time to replace the timing belt, then they do the pump, coolant, etc. all at the same time. I think i got wiper blades or something and went home feeling dumb and not having spent anything. They were right though.
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You missed the opportunity to test low quality parts from your local auto parts store.
Auto technicians have seen thousands of vehicles with oem hoses and belts lasting well over 100,000 miles, and do-it-yourself mechanics that are the cause of their own problems.
15 years ago I stopped including new radiator hoses on my estimates when replacing radiators in vehicles less than 10 years of age.
Quality oem hoses can last the life of a vehicle, at $50 each new hoses will inflate the estimate. Also, because most hoses have a low sales volume, they are not stocked at the dealer and must be ordered. A one-day parts delay can result in a lost sale.
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Are you kidding me???
On what are you basing this? It sounds to me like you’re just trying to pad the bill. Routine hose replacement went out 20+ years ago, the quality of those parts is infinitely better than it was back in the 90’s. Coolant on many cars is good for 150K miles, do you plan on changing that early too? Part of being a professional includes advising people what to spend money on and what not to. There’s very little to be gained by replacing perfectly good parts. I can understand replacing parts that have to be removed to do a repair of some sort at an appropriate mileage, but if I’m removing a radiator at 60K miles to do an A/C repair, I’m not recommending new hoses just because.
Would you? On my wife’s car replacing the thermostat requires removing the intake manifold.
Would you? On my car (the one with 155K) the water pump is inside the engine driven by the timing chain, and I drive it 80-100 miles a day with no worries.
I do understand that in your climate things may age more quickly, but I still think your maintenance intervals are excessive for a modern-day car. When I was starting my career people thought that the A/C system needed a yearly evacuate and recharge, but that’s gone away. Brakes used to wear out at 30K, that’s not really true anymore either. Cars don’t have serviceable fuel filters anymore. Things just last longer nowadays.