Got a B18CR in the EK hatch. Used the stock radiator since I know it can hold up. But it seems like it isn't for me. Didn't have a leak before with the Y7. I used B18 upper and lower radiator hoses. I filled it up with radiator fluid and distilled water. At first I used 1 gallon and closed it up and pour the rest in the reservoir. After driving and arriving at home. Reservoir was empty and added more into it. Today, I'm almost down with the 2nd gallon. (been going on for a week now).

No leaks around the block but rather at the bottom of the radiator. When I arrive home or check the car overnight, the fluid level in the reservoir is really low, almost empty. Then noticed a leak on the floor by the lower rad. hose. which was wet and by the flush drain plug. The plug is tighten and the hose is clamped pretty tight, don't see why the coolant won't drain back into the reservoir? There's no crack in the reservoir by the way.

 

I figured a new SI Radiator replacement from Autozone would fix this. Problem is this one doesn't appear to come with a fan. Will my SOHC radiator fan bolt up to the Si radiator?

http://www.autozone.com/autozone/par...3860_216242_0_

I live in Michigan and the car is driven on highway 80% of the time. So would I even need a fan?

 

yes your fan will bolt on. of course you need one.