Pro tip I learned from a high end detailer I follow on Instagram that’s also a good buddy.
TIRES! Even after scrubbing them during a wash often times they will still have a layer of nasty brown gunk covering the rubber. It’s actually a chemical in the rubber compound that has oxidized onto the outer edge of the tire. To get rid of it, grab yourself a can of stoner tarminator, it’s an aerosol can designed to remover pitch, tar, and tree sap. Spray a bit on a rag and start scrubbing your tires, it’ll 86 that brown gunk, pull off any old residual tire shine, leave your tire with a natural grey sheen, which is actually what the tire is supposed to look like clean. This is what my tires look like after wash and then a scrub with tarminator, they look like they’re dressed with shine but they are not.
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Doing this extra step to your tires will also help eliminate tire shine fling off, and will make your tire shine last longer on your tires because the tire shine is actually applied the rubber of the tire instead being applied over the layer of brown gunk.