The Crisco vegetable oil was ten times easier than Acetone. Lay it on the crud with a soaked rag for an hour. Flattened out the wrinkles and made sure there was good contact. The microfiber rag was pretty saturated. Not dripping but soaked. Covered the rag with cardboard as sun was pretty hot.
Used hot water and car washing detergent. I'm sure Dawn would be great, too. Doused it, scrubbed a bit with another microfiber towel. Dried off with a towel as not doing the whole car so no hose.
I will never use acetone again. Smooth as a baby's ask.
Thanks Tobra and I'm sure the (oily) natural peanut butter would work well too.
Look between the spots of sap and the pot of soapy water. One MF towels worth of space. The acid etching is there but nothing else. It's smooth to the touch. You can clearly see the untouched areas on the driver's side. Other missing sap on the passenger side has been my adventures with acetone. It works but it takes a long time and elbow grease.
