Slowly working through getting my 2009 into tip top shape.
So far in the last 3-4 months of ownership
New air and cabin filter, wiper blades and window gaskets
Drain and fill of trans at Honda, moved to quality synthetic oil and OE filter.
Rotated new tires, found bad wheel studs and a bad wheel bearings which were all addressed.
Replaced both cooling fans, dealership comped 1 and did other myself.
Flushed power steering fluid, replaced trunk struts and added a rear cargo mat which has been a great addition.
Thats about all I can remember right now. Biggest remaining issue is when below about 40 degrees motor sounds like a newer diesel until it warms up.
Sounds coarse and either lifters or injectors are plain noisy - after 10-15 minutes is warms up a bit and is quiet and sooth.
No audible grinding, banding or knocking - just sounds coarse and noisy.
Also still remaining and possibly related - I still get some engine ping on 87 RON gas when the engine is under load at higher RPMS - such as full throttle runs second gear from 4500-6700 RPMs. 93 gas completely eliminates the issue and prevents any engine ping under any of the conditions, but obviously I would prefer to find the issue and solve that vs running premium gas all the time.
I have run through bottles of the chevron engine cleaner, Seafoam and even some MMO - while I do feel it improved it did not eliminate the issue
Thoughts of where to look first?