Uploading old fill up info
 

I just signed up yesterday, but I have been tracking gas mileage on my vehicles on my own using spreadsheets for years. I am planning on importing my previous information here, but will have to redo my spreadsheets to upload the info. My question though, is if I post a new fill up now before I upload the old info will it screw things up when I do upload the old info?

No, it won't mess anything up to add fuel-ups now and import later. You don't need to add fuel-ups in order.

Thanks! Just got done adding about 100 fuel-ups going back to late 2009.