The Spot Removers Leave It to Beaver : Season 3 Episode 33

For an upcoming dance, Wally is ready to wear a grey suit but when Beaver brings his new friend Richard over to the house, he accidentally spills oil on it, leaving a big stain. This leads Richard and Beaver to try to bleach the stain out with disastrous results. Beaver finds himself with another problem, when later, Eddie discovers what Beaver is hiding from Wally.