Polaris and Kubota must have gotten a good deal on Yellow plastic, they both use it for Dipsticks. I saw a YT vid where the guy used a black marker (Permanent/Magic) to paint the dipstick so that it would be easier to see. He got the suggestion from an experienced mechanic but he said he did not know if it would come off or react with the fluids. Has anyone used this method? Not really a big deal but interesting how people deal with issues.