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What is your question?
Why are my fuel levels constantly going up or down
How long has your 2010 Nissan Altima had this problem?
More than a month
1 Reply
Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. I am guessing that you are looking at the data in the instrumentation that gives you an average fuel economy. If this is true, please realize that the information you are seeing will constantly be variable, depending on driving habits and conditions. Weather, traffic, speeds driven are some of the things that influence fuel economy. Satisfactory engine performance, maintenance and ensuring everything is working in great order is another thing that influences fuel economy. If you want more detailed information, I would recommend establishing a relationship with a shop near you who can work with you to understand what you are seeing and determine if it's worth checking into possible economy issues. If you don't have any warning lights on and your maintenance is up-to-date – chances are it is what it is. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!