Mine has not leaked, it is only a 2009.

Never thought about it before. Koyo looks nice on the website. It is about $20 more than a Denso Honda OEM online. Is Koyo the way to go to prevent leaks 15 years later compared to Denso OEM?

 

Likewise. Good to know it's an under $400 fix.


-- Chuck

 

If everything else in the driving environment is the same...The Koyo should last longer than the factory radiator since its fully aluminum.

The plastic end tanks are what crack on the factory unit. Usually right under the cap.

It provides a completely unnecessary amount of cooling capacity for street use. But...that's not gonna hurt anything. If anything, it's beneficial in keeping temps more consistent.

 

For anyone looking I bought from these guys, $302 shipped. Ordered yesterday, should be delivered tonight.

https://rcagarage.com/shop/cooling/r...caAoUhEALw_wcB

 

My Koyo arrived yesterday. I did the install today. I must say the quality is better than I expected. Finally some bling under the hood haha. Thanks to all who recommended it.

 

I just ordered a Koyo for my 2003 with 122k miles. It hasn't leaked yet but I track the car so I'm considering it preventative. Plus, Evasive is having a Labor Day sale so I picked it up with some other on-sale goodies.

Do you recall how much coolant was needed to refill after the change? I replaced the coolant about 10,000 miles ago so I don't feel the need for a full drain and flush.

Thanks.

 

Not sure when you last changed your antifreeze but the maintenance schedule is every two (2) years at this stage in our cars' lives.

-- Chuck

 

Thanks Chuck. I thought I read it was 60k / 5 years after the first 120k / 10 years?

But now that I've checked, it was 4 years ago when I replaced it. So since I'll be in there, better to drain everything I can out of it and reset the clock.

 

The drain plug for the engine block is in the most frustrating location.

Its a 19mm hex.

Once you get your arms snaked thru the subframe openings, though, its possible to break it loose with minimal injury to your forearms. Let a single tear run down your face to let the world know you've experienced pain.

Buy the engine block's drain plug gasket from Honda.

Clean the plug's threads and face with a wire brush and brake cleaner while its out.

Clean the blocks threads with a rag soaked in brake cleaner.

Buy Hondabond to put on the plug's threads when you put it back in.

Torque is 61LB-FT, IIRC.

Buy 2 gallons of Honda coolant. Use a bleeder funnel. Buy 3 gallons if you'd like to have extra coolant.

 

For some reason I thought you had an '00 car, that's the "severe" schedule. Seems all the later cars are "or every 5 years" regardless of driving conditions perhaps due to better antifreeze (?). Every S2000 is well beyond the "or 10 years" for the initial change.

-- Chuck