Bought a Dolly Sprint once, the previous had used this stuff for years , when i took the sump bolt out nought came out so I dropped the sump, it was half full of grey graphite thick shit.
Took the rocker cover off and you could peel the shite off the rockers.
don't do it, the branded oils these days are more than capable of fulfiling the requirements.
funny I had a Volvo 244 for 3 days aswell, which was 2 days longer than that Dolly Sprint !!