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I bought a pos 6 speed Rx8 $500 127k runs but immediately after engine reaches operating temps the white smoke begins.... The smoke comes out the tailpipe under acceleration and the coolant reservoir builds pressure/smokes as well. Still runs good and if I take the radiator cap off it will start back up even after a warm shut off.
I don't want to hear why I shouldn't put coolant sealer in my Rx8 I want to hear actual success stories and unsuccessful attempts and what product they used.
I say again I only want to hear from people who have done the deed, not the ones that repeat what others have said. I also don't want to hear the havoc it does on the coolant passages from the rebuilders either.
I have done my research and understand that it's bad for your engine and I don't care. All I want to know is what product lasts the longest and has the best results. These cars are depreciating and most aren't worth rebuilding, so I believe now is a good time to have this discussion anyways.
There is no way to know until you try I suppose. It works for some, causes heartache and pain for others. Interested in seeing your results though because I’ve never had engine problems with any of my RX8s so never had to try. I’d imagine some type of head gasket sealer would work best. I’d try the Blue Devil stuff.
Last edited by CaymanRotary; Aug 11, 2019 at 09:37 AM.
I had a coolant leak into the back rotor. I have no interest in pulling my motor in the middle of summer. I live in south Florida. It's not my daily, so I figured why not try it. I did some research and decided on k seal. Followed the instructions and haven't had any issues since. It's probably been 2 months. I drive it a couple times a week. No overheating issues either.
I say again I only want to hear from people who have done the deed, not the ones that repeat what others have said.
Originally Posted by CaymanRotary
... because I’ve never had engine problems with any of my RX8s so never had to try. I’d imagine some type of head gasket sealer would work best. I’d try ...
congratulations on being “that guy” and on the very first reply even
congratulations on being “that guy” and on the very first reply even
I haven't personally but I know people who tried this Blue Devil stuff. Worked for one guy didnt work for the other. Just trying to give a suggestion on what to use man. Go easy.
I ended up going with Alum-A-seal “first” it is holding up quite well for the first day but she is down and out because the tires hit the wires. I’ll tell you what, I was not expecting an RX-8 to scoot like this one does.
I decided to just follow instructions on label since I could not find an actual write up for an Rx8. I flushed coolant with tap water and added some cheap green coolant drove it for a bit to some what flush out engine, then added product to coolant res/radiator once cooled down. Idled car for about 20 min then drove about 20 hard miles There were a few times i saw a puff of white at 8,000 rpm but it keeps getting better. I am going to be beating the hell out of the car as well the entire time... So we’ll see how well Alum-A-seal holds up and I will keep everyone posted on the results.
I’ll tell you what, I was not expecting an RX-8 to scoot like this one does.
