[suspect]

i don't think i would want brake fluid getting slung onto my paint. doesn't brake fluid eat paint?

i use black magic's "tire wet". nothing makes a tire shine like this stuff. i think it's about $6-$8, but you can wet 4 tires about 4-6 times. depending on how conservitevely you use it. and if it doesn't rain, it will keep your tires shiney for a good 5-8 days.

i would think if you used a household item like baby oil, vaseline, etc. the same amount as the black magic, then your cost would be alot higher. i suppose if anti-freeze shines them up, then that's probably your cheapest route.