How to whiten a dingy, slightly yellowed washer tank?

[911scfanatic]

Wondering what tricks there are to doing this. Would like to clean up my '68 washer tank, which is different than the later ones. I just read on a motorcycle forum that some people have used Bleche-Wite. Anyone else? Other ideas?

[gsjohnson]

I've never found a way to return these plastic bottles to their original white color. The yellowing goes thru the plastic so I don't see how it would be possible to return it back to its' original white state. For cleaning and removing stains, I have found that the dishwasher works very well.

[911scfanatic]

Dishwasher sounds like a pretty conservative approach, so I'll try that first. I assume there are no issues with warping from heat. I have a spare of the later style, so I can try that first.

Here's another possibility <retr0bright> that computer nerds came up with. It's for ABS computer cases, so I'm not sure it'll work on whatever the tank is made of. Maybe some chem-E nerds can comment (I'm only an ME nerd).

[beetle08]

I have used Mr. Clean Bars on yellowish headliners, sun visor clips and sun visors with success. I get the bar really wet and rub gently in the same direction as to not leave scratch marks.

[gsjohnson]

Dishwasher sounds like a pretty conservative approach, so I'll try that first. I assume there are no issues with warping from heat. I have a spare of the later style, so I can try that first.

Make sure you place the washer bottle on the upper rack of the dishwasher to prevent warping. The top rack is cooler than the bottom of the dishwasher.