Ari2010

I bought this certified preowned @2013 from Lexus. I put a bottle of Liqui Moly 2007 Jectron in a 3/4 full gas tank 4 days ago, I have not seen any improvement yet but it might take more time because I have not gone through the whole tank yet. Also I always used premium octane 91 thinking its a must. I will try to check the spark plugs in a few weeks or ask a mechanic to do it for me if things does not improve.

Thanks. Milage is relatively low (115000km), air filter has been replaced recently. For tune up, is this something that dealer can do or better do or need to go to shops that specialize in tune up? I have never done this before. I also tried a bottle of liqui moly last week but have not seen any improvment. based the mileage you get something must be wrong on mine

Hi, Any other rx350 2010 owners in cold climate getting mpg around 10-12 that i get? (~20 litre/100km) What are some of potential issues that are causing this? anyone has any experience with this.