I too have a 2013 Rav4 GXL Diesel 2.2. Just before its 40k service (Sep 14) the oil warning light came on going uphill. I dipped the oil and found it was showing its lowest marker level. I mentioned this at the time of the service (done at home) and the mechanic said he would note the matter in his inspection report. I received a call the following day from the service manager at City Toyota, Perth who informed me my car was one of a batch which had been identified as having been fitted with defective piston rings. The dealer took the car for a week and stripped the engine down fitting new rings. When I collected the car I raised concerns about the problem recurring. I was assured this would not be the case. The service assistant told me there had been a similar problem with FJ Cruisers when they first came out and none of those which had been repaired had come back. Well today the oil light came on again going up the same hill! I dipped the oil and again it was showing its lowest level on the dip stick. The car is already booked in for its 50K service in five days time so I await with interest what the reaction to the fault is going to be this time. I shall update once the service is done. Over the years this is my seventh Toyota and the only one I have ever had any problems with.
