TheCanadian

I know in the original RDX's, 2007-2009, the radiators like to fail and mix coolant with the transmission fluid. 2010, along with the refresh, saw an updated radiator too.
Has anyone had the mixing coolant/trans fluid on the 2010+?

Tomtwtwtw

I didn't realize there was a change. But I can confirm my 2010 is still going strong on the original. Staying on top of coolant change intervals will help extend the life of the radiator.

mrgold35

I didn't realize the 07-09 RDX had a radiator coolant/trans oil mixing failure? I know the 07-09 MDX had this issue. The only radiator issue I had with my 08 RDX was hairline crack on the bottom radiator area that slowly leaked coolant; but, not enough to drip on the ground (happened at around 160,000 miles back in 2019.

mass978

I have a leak somewhere. I just finished a series of suspension replacements so I am going to make time to take a peak. I'm going to replace my radiator either way. I am about about 145k on my 2012

gwickes

Owned a 2011 RDX since bought new in Dec 2010. Just passed 200K miles. No issues with radiator. I have performed coolant drain and fill when needed as indicated by MID. Live in Texas so don't get harsh winters or salt here :-).