On every car I've ever had, the inner fender linings always get discolored and **** me off.

I've tried everything, cleaners, degreasers, protectants, pressure washing, etc.

I see some people have no problems with staining in this area, now is it where you drive, or is there a way to keep them looking good?

 

i have some stuff called "amazing rolloff" that i got from proper auto care that works pretty well

 

Cleaning with Meguires All Purpose Cleaner Plus or other strong cleaners work with a bit of scrubbing. I rinse the areas really well. If possible, have car raised with proper safety restraints then with water under high pressure, I blast out as much as possible. Once that's loose, wait for water area to dry a bit, then apply a cleaner like APC+. Let it sit, go under and scrub then rinse really well. I use compressed air to dry, then apply the Meguires Engine Kote on just about everything. Looks nice and clean, not too glossy.


Yielar

 

I've tried stuff like that, but the next day when everythings dry they're back to being too light and having white stains.

It's like cement on there or something. I'll give what junglist said a try, I need somethin' really tough.

 

I cleaned them thoroughly with Hi-Intensity cleaner. I then covered the area with Zaino Tire Gloss. Works like a charm. Stays nice and black under there for months.

 

Griot's Undercarriage spray.......http://www.griotsgarage.com/catalog....000&L2=L2_1002

 

Griot's does have good stuff, it's just so expensive!

I recommend their glass polish.

 

I painted mine with POR-15 semi-gloss black and then use the Zaino Z-16 to keep it looking even better.

 

i use tire shine as well - makes like new