How much will it weigh when loaded? I have done as high as 14 mpg but typically average in between 12-13. My trailer is a full-width Apex Nano which weighs 3,000 lbs unloaded and I typically have the trailer and car loaded up pretty good with water and camping gear.

My car is a 5MT 3.0i for reference.

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2003 3.0 5MT Topasblau
Purchased in 2016 and surprisingly still running