I Can say one thing. I Bought a 2009 Journey SXT 3.5L AWD back in July. I Have already had the problems most talk about. I was sick to my stomach in the beginning after reading all the probs. people had. Most things were covered under the warranty luckily, but gas mileage was the pitts. only 14 mpg. I replaced all plugs, added a Spectre Air filter and drilled about 20 5/8th inch holes in filter box and snorkle. Spectre filter was the same as a K&N but cost half as much. Sound of the engine improved with increase of air flow and hwy mpg actually increased to 22mpg driving at 80 mph. not too bad. If you are interested in Spectre brand you have to cross reference the Journey with the Avenger. They use the same filter but Spectre has not put that in writing yet. Filter was a perfect fit. I Think when they realize this the price will increase significantly when journey owners start buying the filter at the cost of under $20. I am also Thinking about adding the Hypertech Programmer to see if it will improve the gas mileage and performance.
