Durablity is my top quality in such a dressing as is low to no dust attraction. Both kinds of tire dressings just seem to fail in either one. I've used the old Meguiars Engine Kote, an acrylic floor shine-like product, but it can be tricky to apply and needs to be wiped or else droplets can dry and not look grreat and be hard to remove.
Some have used Mop & Glo or Future floor shine with decent results. I'd say the results will depend on the particular wheel wells they are being applied to.
I'll probably give the Future a try myself and I was thinking about the clear Trim-A-Shield. It's an actual coating and supposed to be quite durable and give a gloss to plastic surfaces.
If you don't mind frequently re applying a dressing in wells, I'd say go with something like Armor All or simlar water based dressing: less dust attraction.
, black magic tire shine, etc cut 50/50 with water. If you dont have those, you might want to consider buying Meg's hyper dressing and diluting it 5:1, or any old bulk dressing diluted 2:1 (TOL grape shine, etc). Stoner's is really a bit pricey to go around spraying in wheel bays, plus I find that it runs onto the tires/pavement. You might want to consider doing your bays with black spray paint, rubber undercoating, or if you want to get real fancy, black heavy machinery paint (Caterpillar, etc). That'll make it a lot easier to keep em looking good.
