Flush Systems: A Big Taboo
In Honda vehicles, the transmission, as well as the systems that handle lubrication, cooling, fuel, and power steering, are designed to give thousands of miles of trouble-free service if you follow the maintenance schedule to the letter.
Flush systems are a popular aftermarket offering these days. These products look impressive and make lots of claims, but American Honda strongly recommends you avoid using them on any Honda vehicle. Here’s why:
• The maintenance schedule neither requires nor approves of aftermarket flush systems.
• Flush systems take time to do; this adds to your service customer’s wait time.
• Flush systems haven’t demonstrated an improvement in vehicle performance or reliability.
• Flush systems using solvents may leave solvent in the system you’re flushing. This will dilute the fluid or lubricant and degrade its performance.
• Flush systems using filters can filter out vital additives and degrade the fluid’s or lubricant’s performance. This is particularly true for coolant.
• Any damage caused by flush systems isn’t covered by warranty.
Nothing wrong with a drain 'n fill, except for the little bit of fraud if they're calling it a "power flush." You'll have to ask the dealer which procedure they're actually doing.
Glad to hear! Just curious, what were all the symptoms you were having?
I wouldn't make that kind of assumption. I know from personal experience that the local Honda dealership doesn't give a hoot about Honda's "recommendations" if they turn extra profit. For example, they did my very first oil change and insisted on dumping in a quart of graphite additive in defiance of Honda's directive to not use it. They get a "rebate" on each bottle used.If it's the dealer, it's likely they're actually doing a 3X drain and fill process as the service manual dictates.