Has anyone tried the kit Prestone sells for flushing your engine and radiator. It installs on the upper heater hose. I have a 1989 L98.Anyone have luck with this?

 

I hate those garden hose fitting Wal Mart looking kits. No way I would hack up a hose on my Vette for that:cuss Sorry for my rant there... Is it for maintanence or over heating problem? If you want to change your coolant I would see what other guys have done. I would drain it, replace the stat, fill it with distilled water, let it heat up and cycle that a few times until the water is clean. Then do a finall drain and fill with distilled water and Prestone orange stuff in the Silver jugs it is dex-cool compatible and good for 5/75 or such. If your radiator tubes are corroded pull it and have it serviced or replaced. No pour in crap will remove years of scale it will just move it around at most. We have a radiator shop in Dallas that vats and rebuilds radiators cheap.


[Modified by Quick Brick, 10:34 PM 9/21/2002]

 

Hi Rich! Welcome to the Forum. I have to agree; I wouldn't want to cut into my hoses for this product. I have just used the fill,drive,drain,fill,drive,drain process for "flushing", and it seem to work OK. Since our water is hard enough to skate on, I too would use distilled water along with the dex-cool. I would also recommend having the coolant checked (specific gravity right for your temperature range), or doing it yourself if you have the simple hydrometer required. :yesnod: :)

 

I bought both the hose kit and the Prestone Super Flush.
My mechanic discarded both and noted the flush chemicals can be bad for aluminum. We did it like carpe dm. Fill with hose water. Bring to operating temp so the thermo opens tap water and cleans out block dexsludge. Also turn on the heater to flush that system with the tap water. Drain, then refill with your distilled water and preferred coolant. I run Prestone Green now.

 

I've used the Prestone Tee for yours in a bunch of my cars and think it's a great way to flush out all the old coolant mixture. It always seems that when you drain the radiator, you only get half the volume that the owners manuals give for cooling system capacity. The other half has got to be in the engine, hoses, and hearer core. If you drain the radiator and replace with tap water, you've diluted your system's old mixture by half. Do it again and you have 1/4 of the original old mixture. Again, 1/8th and so on. I think having that Tee fitting installed on the top of the heater hose is a small price to pay in appearance for the convenience of being able to force all the old coolant mix easily out of the cooling system. After I have clear tap water coming out of the radiator, I remove the hose and drain the radiator. I then hook up a 1 foot hose with a funnel so I can pour distilled water into the system. Hopefully, this will force out all the tap water. When the radiator is finally drained, filling it with pure antifreeze will yield the desireable 50/50 mixture. I do not always accept mechanics opinions on the way they do things. Afterall, they are working on someone else's car in order to make money, and the quicker they can do a job, the more money they can make. An owner that really cares about his car with a little extra time can sometimes do a better job. And finally, on one of my cars the heater "hose" is metal, so I remove the whole assembly and use a temporary 3/4" heater hose with the Tee installed. So far I haven't looked at the C5's hoses to see what method I'll be using. :cheers: