man of steel Posted May 19, 2010 Share Posted May 19, 2010 I noticed the past 3-4 months that my 1999 Avalon's mpg has gone down. I used to get an average of about 22-21 mpg. But now I'm getting 17-18 mpg. I only have 84,000 miles on this car. I noticed my tires are getting low on tread. I change my oil regularly, but I did recently change my oil to synthetic-blend high mileage vehicle from regular oil. Maybe my car is just too old. Has anyone experienced something similar? Quote Link to comment Share on other sites More sharing options...
Leighcm Posted May 20, 2010 Share Posted May 20, 2010 I noticed the past 3-4 months that my 1999 Avalon's mpg has gone down. I used to get an average of about 22-21 mpg. But now I'm getting 17-18 mpg. I only have 84,000 miles on this car. I noticed my tires are getting low on tread. I change my oil regularly, but I did recently change my oil to synthetic-blend high mileage vehicle from regular oil. Maybe my car is just too old. Has anyone experienced something similar? Have you done your scheduled maintenances? You're probably due for a tune-up. Quote Link to comment Share on other sites More sharing options...
silverxls Posted May 20, 2010 Share Posted May 20, 2010 try a can of BG products 44k in the fuel. it is a very good cleaner and will clean the injectors. always helps in mine, i do it once a year. Quote Link to comment Share on other sites More sharing options...
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