In Victorian times, 2 shillings would be considered a modest sum of money. It would have been enough to buy a few basic necessities or a simple meal. However, it wouldn't be considered a substantial amount of money, and individuals would still need to budget and prioritize their spending accordingly.
18 hours
You would use: 135/60 = 2 hours 15 minutes or 2.25 hours
You need to specify a unit. 6.15 what? 6.15 trillenniums would be 53910900000000 hours. 6.15 nanoseconds would be 0.00000000000170833333 hours
2 half hours would be 1 hour
10 hours
12 hours a day
It could very well be a carbon build up on the valves. I would try some engine cleaner and injector cleaner first though.
What would a rich Victorian family do for a day out?
heavy breathing as you call it , in an engine would mostly be caused by a filthy air cleaner or a blocked air intake
Depending on the Wealth of the Women would effect the methods of dress cleaning.. If you were poor, you would probably throw dresses in the bath, after the water had been used and if you were richer, you would use clean water and a form of soap or cleaner...
The longer you use the vacuum cleaner the more it will deplete the car battery. So it would be advisable, expecially if the battery is not in best of health, to keep it charged by running the engine. Not very green though. You' be better with a mains cleaner.
The Victorian children stay there in the coal mines for hous and hours. They would only have 1 hour of school per week They would have no choice to do what they want
Engine temp getting too high, or poor quality gas. Try some f/i cleaner and some octane boost.
If the filter is to small or dirty this would restrict the air flow, lowering the CFM available.
Victorian children would have walked in the gardens, read books and played quietly.
breather tube from crankcase or valve cover brings blow-by to the air cleaner to reburn. excessive blow by will be heavy with oil in the air.