Greetings just bought a wrecked 2007 rx8. One oil cooler needs to be replaced. Should I replace the one oil cooler or should I replace both with one single cooler?

 

This thread may be of use for you: https://www.rx8club.com/series-i-tec...cooler-185476/

The short answer though, is if you are replacing a twin oil cooler setup with 1 OEM oil cooler, then it is a bad idea that will contribute to a short engine life. The stock twin oil coolers work very well. They do cause a restriction in the system though, a restriction which can be reduced by replacing with a single larger oil cooler to achieve the same cooling capacity. You would have to deal with mounting challenges of course, and just mounting it in front of the radiator means that you are going to reduce the radiator's efficiency as well, so that isn't quite as ideal.

 

Good to know, thanks for the info.

 

Good to know, thanks for the info. I may stick with a stock cooler and upgrade the lines. Any recommendations?

 

im looking to do the same thing with one large oil cooler infront of my aluminum radiator and installing a switch to keep the fans running and install a condenser to ensure battery doesnt die