Can someone please explain how the % Oil Life Remaining is determined or calculated by the RDX's sensors & computer?

 

doesnt mention the RDX but that is because it wasnt out when this document was created. However, I am pretty sure it works the same way.

http://www.in.honda.com/Rjanisis/pubs/SN/B050900.PDF

 

It doesn't "really" know but is rather a calculated % number based on data the car records of your driving habits ie: mileage since last reset to 100%, average speed, stop and go, idling, acceleration, braking, etc.

 

Thanks for the link. I was wondering why other maintenance items showed up before their due times. Now I know. A clever way of making more money. BTW, I would never let any car go one year before an oil change. Being Old School, I was raised under the 3 months/3,000 miles rule, but I now go by 6 months/6,000 miles, even with the Mobil 1, or the like. I know some will say you can go 7,500+ miles with conventional oil and 15,000 miles with synthetic, but why take the chance? Changing the oil and filter is the best insurance for your engine lasting a long time.

 

1) If you change your own oil, how do you tell the car that you changed it? Does it automatically detect it?
2) In general, if you drive like a grandmother, can your get more than 6000 miles between oil changes?

 

1. You can reset the oil life indicator yourself, which would reset it to 100%. Instructions are in owner's manual.
   
2. Yes, you can probably get more than 6000 miles.

My 08 RDX has 4500 miles, 20% oil life remaining. Car was purchased in Nov 07.

 

I've been getting 5000+ miles per oil change and I definitely don't drive like a grandma. Right now I'm 10% away from my next one.

 

Are you trying to say driving like a senior citizen, i.e. 65+? I know a lot of grandmas, and grandpas, in their 30's, 40's, and 50's who drive with the pedal to the metal. As far as your question is concerned, it is just the opposite. Driving slowly with frequent stops on short trips will lower the miles between oil changes. Consistent highway driving in moderate climates will give you the most miles. Having been a member of the TL, RL, and now RDX forums, and from what I have read from other members on the subject, I can say that the minimum seems to be around 3,000 miles; maximum is 7,500 miles; with the average around 6,000 miles.

 

my last few changes were around 6,500 last one being 7,200 miles! im likeing this whole not changing oil every 3000 miles thing

 

How does the cow know when the milk will expire??

 

This is WOT, but DYK cows can "milk" themselves? Yes, they can get their heads down there and relieve the pressure of not being milked.