The grades are 1-5. When Skipco gets a car,, they give it a grade of 3 until they check the car out. Above 3 is better than avereage according to their website. You can view their ratings through their website. They have a document you can print out describing that. Use the full site web option if you are on a smartphone to find that. It is there somewhere but I forget where.
You can look at vehicles 2 days before the auction. Normally all vehicles are available by Thursday that week
You can also look at all vehicles the day before action.
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