Welp, as promised earlier, I have the results of my first oil stain remover test! Because I had all the supplies, I chose to test the wikihow oil remover instructions first.
Step 1. Spill oil on shirt. Check.
2. The instructions said to use a paper towel to blot out remaining oil, but my shirt was already dry...there was no oil to blot. So I proceeded on to the step where I cover the stain in baking soda and let it sit for 60 minutes. The baking soda is supposed to soak up the oil. They say to repeat this step until the baking soda no longer turns brown. As the oil was already dry, this only took one application for me.
3. Scrape off all remaining baking soda with a credit card. You can barely see the stain spot at this point, so I was hopeful.
4. Apply dish washing detergent as a pre treatment, and scrub into the fabric with an old toothbrush until it foams. I couldn't ever get it to foam...but I sure scrubbed the soap into the fabric!
5. Wash with 1-2 other non-delicate items with normal detergent, on the hottest water settings, and add 1/2 to 1 cup of vinegar. I added about 3/4 of a cup.
6. Dry as normal is the last step, so into the dryer it went.
Did it work?
Hooray! Hooray! Hooray!
On one hand I'm a tiny bit sad it didn't turn into a Pinstrosity (I kind of figured it would as the oil was already dry and these instructions seemed to be for fresh oil spillage), but only because I now don't have a Pinstrosity to show you. But, you now have a oil removal method that you can try at home with ingredients you most likely have on hand! Cool! I hope it works for you as well as it worked for me.