I have stains from washing off golf cart batteries one time in the driveway - they are orange and run all the way down to the street. I found The Works at Walmart and Home Depot in a white bottle and just tested it on a 2' square section - it cleared most of it right off! I poured directly onto the stain - no sprayer or diluting. There is still some difference and the treated area is lighter/yellow than the rest now - it's not perfect but better than it was. I may try diluting some in a sprayer and treating the whole driveway and letting it sit longer next to even things out - or hire someone to acid wash (pool acid) the whole thing and power wash afterwards. It was freaky because it bubbled up and was green - I let it sit 5-10 minutes but that was all I wanted to risk... no way I was going to let it dry. I didn't scrub or even get near it - just bathe the spot in the stuff and rinse. YMMV. This post is 4 years after the original post. This post was edited by karyn on Wed, Jun 12, 13 at 7:18

Here are the directions. I wish you could see the pictures of how this looks, but they sent me a color copy, not a link. Since your patio is green, you would probably have to paint it some sort of cement type color to form the 'grout lines' before rolling on the bricks. If you have patience and a steady hand, this is a great cheap fix. Let me know if you do this and how it turns out. Or, if you have any questions. from Cottage Living: for painting old concrete to look like brick. This is the technique I used on my patio that I got from Cottage Living Magazine. They sent me a reprint, since I misplaced the article. I only wish I could post the photos from the article so you could see what she is doing. But here are the written instructions. Let me know if you need any help. You can do it Go Faux it. The plain paving around the 1930's cottage did little to enhance its charm, but tearing out the concrete and laying a brick walkway would have cost thousands. Instead, Claudia mixed a batch of brick colored paint and rolled it right onto the concrete. Initially, she tried stenciling the bricks, but when it looked 'too neat and perfect', she decided to do the job by hand. After painting a 100 foot long path in an afternoon, she was so pleased with the results that she went onto brick her entire driveway. Details: Paint a brick walkway:Gather the goods: 4 inch paint roller, paint tray, custom blended paint 1) Claudia Darr used 1 gallon of Benjamin Moore's MoorGard Low Lustre Latex House Paint (#103-4B) in the following forumla (the paint dealer will know what this means):OY 1x8, RX 5x, BK 1x22, MA 3x, WH1x16, TG 18 2) Clean the area you plan to paint, and let it dry thoroughly 3) Beginning in a corner, use a 4 inch roller to paing " bricks". Make each one about 7 inches long, leaving about 3/4 inch between each brick (to simulate grout line). Stagger adjoining rows so bricks form a wall pattern. Good luck with this and let us know how it turns out. Some tips from me: sweep the area well before you do this. The 4 inch roller is a skinny little roller that I found in the Benjamin more paint store. It came with a roller stick. I attached one of those wooden poles that screwed into the handle of the roller handle. It is the type you would use when you would paint your ceiling. Trust me, you do not want to bend over with the roller for an entire day painting the ground! Experiment on some old newspaper first to get your technique down. And, I first went around the entire outside of the patio laying the 'bricks' out along the edge in the opposite direction that I ran the rest of the bricks in. It makes for a nicer look.

Maybe a degreaser for concrete garage floors or driveway would help. Also, might try rubbing cornstarch or other dry powder into it to help absorb/wick up some of the oil. Repeat applications would be needed. After removing the oil spot I would put a good concrete sealer on the counter to prevent future stains from food/cooking. Enough coats of sealer until water will bead up on it instead of being absorbed.

I would try keeping it wet for about 24 hours....maybe put a sprinkler on it, then see if the vine pieces have softened enough to come off with a brush. If it was Boston ivy, those little "feet" have some sort of glue in them to allow then to climb even on glass, and of course rain doesn't wash it away. But perhaps the sticky bits are dry enough that they will absorb water and soften. You might try some sort of solvent....maybe mineral spirits....maybe denatured alcohol. Test on a small spot to be sure it doesn't also remove the paint shading.