Dale Earnhardt Jr. has found the secret to boosting his Uber rating -- MONEY!
The NASCAR legend got the Uber blues on Saturday when he learned his rating was a crappy 4.0 on the 5.0 scale. He tweeted about it, "That's complete sh*t."
Uber immediately reached out to Dale and tried to help him with some quick tips ... and Junior says he's rating's been way up ever since~
"I've been tipping really good and been nice to the driver ... and it's working out! My ratings are up!"
Earnhardt says he's cool with the company now -- and says it's the best way to go out if you plan on boozing.