Spotted this on eBay. What does anyone think of this idea?
https://www.ebay.com/itm/Oil-pressu...=true&nordt=true&rt=nc&_trksid=p2047675.l2557
https://www.ebay.com/itm/Oil-pressu...=true&nordt=true&rt=nc&_trksid=p2047675.l2557