110 pints of Guinness a day should give you all the iron you need to lift your outfit up and give it a good shaking. Remember, Guinness is a meal in a glass.
In one of my workshops in London in the past, I had a paraffin heater on which I used to place a tiny little saucepan containing R, whichg slowly infused the air along with the odour of burnt paraffin. Paraffin heaters are not to be found in Paris, so it would seem.
I also ran my café racer MZ on it quite successfully. Some of you will remember that machine from a Liphook meet around sixteen or seventeen years ago. It was an ex-Burwins racer. I had a burn up back to The Smoke along with A3 with John Wright - still sorely missed - on the Montlhéry Shadow now owned by Arthur Farrow. I hadn't a speedo, just a rev counter (that didn't work, of course), and JW pulled alongside me near Ripley and pointed at his clock, showing just over a ton, before pulling gently away. It ran very well indeed on R. Glorious smell!
Used to run the Norton Inter below on R too. Remember the days when this was how we parked our bikes? Stuffed into the front "garden" with a length of battleship chain and wiped over with oily rags to keep the English weather at bay.
On chilly mornings, the old trick of heating the R over the stove in a saucepan was a good plan, otherwise it took almost as long to nurse it up to running temperature as a Vincent-HRD twin, which wasn't practical for London. I never had constipation...
Mind you, this Inter wasn't suitable as a ride-to-work nail in the colder seasons as it had no lights fitted. I suppose one could run a Vincent-HRD on R without too much hassle but given the good quality of modern multigrades by firms like Silkolene, why bother? The spoonful in the fuel achieves the desired olfactory effect...
PK