My MID doesn't have an oil life screen. There should be 8 screens and there are only 7. I see the message, "Maintenance required soon" when I start her up.

Does anyone know if the maintenance codes show up with an ODB2 scanner?

 

Can you tell us how many miles are on your RDX?

 

79k miles

 

That is going to just be a regular oil change, with maybe a tire rotation to check the brake pad wear.
They are all just oil changes & tire rotations except:

30,60,90,120, etc include engine and cabin filters and a normal drain & fill of the transmission. (That replaces approx. 1/3 of the fluid)
If you have AWD then those components get their fluids replaced then as well.

At 105k the timing belt service gets done. That includes spark plugs. Usually the coolant gets replaced then because the water pump gets replaced with the timing belt
Honda does not actually call for the water pump to be replaced until the second timing belt service (210k) but most folks add that part to be prudent. The actual coolant
replacement schedule is 120k.
Many (including me) like to do the trans drain & fill every other oil change (15k) instead of every 4th (30k) This may be overkill with the RDX but is not with a MDX, Pilot, Odyssey, Ridgeline
that share this engine/trans combo. Beaver to begin with and far more likely to be driven weighted down.

If you never get the MID working right again, the oil change interval for this engine was 7500 miles before there was one.

 

My MM has essentially been telling me to change the oil every 15000 km. So anyone following that but using regular oil vs. synthetic is going to be smoking everyone out behind them sooner than later.

 

People use regular oil?

 

I've only really heard of using synthetic to be honest.