Fuel prices

It's about 10 miles to my mooring..
My knees and back are no longer capable of cycling that far..

So 20 miles a week for 50 weeks a year
1000 miles at 32mpg.
Or about 32 gallons a year
Yesterday I was in Tesco when the diesel was delivered it then went from 169.9 to 177.9.
No fuel is used rowing to the boat or sailing it.
That's still 260 quid before you've even got the oars in the rollocks.
 
I cannot remember how full my diesel tank is, but it should be almost full. My biggest problem to going sailing is the three and a half hour drive each way. Thankfully I have a fully electric car and solar panels on my home. In March we exported more electricity than we bought to run our 2 electric cars. The electricity we bought was all cheap rate at 8.5p per Kw, but exported at 15p per Kw. Our last month's bill was £28, of which £26 was standing charges. From today the prices for cheap rate have dropped to 4.99 and the export rate dropped to 11p. I should mention I can drive the 97 miles each way to the boat and back on one charge at home, so no expensive charging. So, the increase in diesel prices will hardly affect me, even though I am going round Ireland this summer. I feel so sad for all of you who are feeling the effects of the higher oil prices.
 
When I see the price of fuel it makes me glad we chose a boat with a small, single engine that averages 3.5 mpg rather than the one with twin high power ones that might hit 1mpg on a good day.
To be fair 1mpg is at planing speed but all mobos can go at displacement speed and whilst twin big lumps might use a bit more than your smaller single it won’t necessarily be a huge amount more.

I reckon we get around the same mpg as you with our twin 265hp engines when we pootle along, which is what we do most of the time. We sometimes run on one engine but I am not convinced that makes a huge amount of difference to consumption when you consider the drag of the stern gear on the inactive engine and the need for the running engine to be at slightly higher rpm. The benefit is working the running engine a bit harder and putting less engine hours on.
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I often ponder the difference between your MPG and yachts GPH. mine uses 3 Lts / hour doing 6 knots . I use the tide as much as I can , so say going from cowes to poole on springs could be doing 9 knots over the ground most of the way.
 
I often ponder the difference between your MPG and yachts GPH. mine uses 3 Lts / hour doing 6 knots . I use the tide as much as I can , so say going from cowes to poole on springs could be doing 9 knots over the ground most of the way.
I know what you mean - it does seem to be a mobo thing to look at MPG as opposed to GPH. To be fair we do similar to you if we can as we don’t see the point of burning a load of fuel to shorten the experience and I reckon we use somewhere between 1.5 to 2 GPH at 6-7 knots, maybe nearer the 2 but I haven’t been able to accurately measure it due to doing a mix of speeds between fill-ups. To us 9-10 knot with the help of the tide is a perfectly respectable cruising speed 😁
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We're away for several weeks through the season so I've decided the boat can sit in the yard this year as it's just not worth the aggravation and expense of getting it ready to go back in.

My enormous 25 litre tank will still be full to the brim in 2027. :)
 
According to my Yamaha CL5 display, I burn about 5 litres per hour at 6 knots. I don’t have to worry about tides given I am in the non tidal Thames and 6knots is the max speed one can travel at.
 
Ma
To be fair 1mpg is at planing speed but all mobos can go at displacement speed and whilst twin big lumps might use a bit more than your smaller single it won’t necessarily be a huge amount more.

I reckon we get around the same mpg as you with our twin 265hp engines when we pootle along, which is what we do most of the time. We sometimes run on one engine but I am not convinced that makes a huge amount of difference to consumption when you consider the drag of the stern gear on the inactive engine and the need for the running engine to be at slightly higher rpm. The benefit is working the running engine a bit harder and putting less engine hours on.
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The hours point is interesting - I do my own servicing but even so its about £250 of oil, filters, seals, anodes, impeller etc. With a service every 150 hours the cost per mile or hour is at least half as much as the diesel I burn. If I had a 3rd party do the service then I suspect the service costs would exceed the fueling costs.

For a sailing boat using 2-3 litres per hour, diesel costs are not that significant and matched by service and repair costs.

Diffrent sums at 2-3 gallons per hour.
 
We're away for several weeks through the season so I've decided the boat can sit in the yard this year as it's just not worth the aggravation and expense of getting it ready to go back in.

My enormous 25 litre tank will still be full to the brim in 2027. :)
I hope you've added fuel stabilisers or you could have problems when you get back to the boat.
 
I do most of my hours on the motorboat at slow speeds so the average fuel consumption rate per hour is not so great.
The fuel burn at 20 odd knots is always much more significant but that is just a few journeys per year. I guess I consume the best part of 1000 litres per year . The extra fuel cost at say 80p per litre for 1000 litres would be about £800 over the year .
Obviously I would prefer not to be paying that extra cost but I am prepared to make economies elsewhere.

Fuel for travelling from home to the boat fuel is, for me, not an issue since the boat is less than a mile from home. It is of course walkable distance but to be honest we usually do go in the car as there is almost always something that requires transport, even if it's just the supermarket shopping.

The boats which offer the worst value for money are those which sit there unused.
 
Ma

The hours point is interesting - I do my own servicing but even so its about £250 of oil, filters, seals, anodes, impeller etc. With a service every 150 hours the cost per mile or hour is at least half as much as the diesel I burn. If I had a 3rd party do the service then I suspect the service costs would exceed the fueling costs.

For a sailing boat using 2-3 litres per hour, diesel costs are not that significant and matched by service and repair costs.

Diffrent sums at 2-3 gallons per hour.
Possibly. For the last few years sailing i've averaged around 15 to 20 gallons a year in diesel that takes me around the east coast, france a couple of times and south coast. Say 170 quidish.
Servicing i do myself, oil, oil filter, diesel filter, impeller. Say 90 quid.
 
To be fair 1mpg is at planing speed but all mobos can go at displacement speed and whilst twin big lumps might use a bit more than your smaller single it won’t necessarily be a huge amount more.

I reckon we get around the same mpg as you with our twin 265hp engines when we pootle along, which is what we do most of the time. We sometimes run on one engine but I am not convinced that makes a huge amount of difference to consumption when you consider the drag of the stern gear on the inactive engine and the need for the running engine to be at slightly higher rpm. The benefit is working the running engine a bit harder and putting less engine hours on.
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I was going by info in logs for this boat and the Broom with twin Volvo 370s we looked at. Its a bit iffy as they are logging litre/hour and calculating mpg from average speed over the day but it give a sense of scale. Our Bayliner did about 1.8 if trundling along at sub-10mph, dropped to below 1 mpg planing at around 28-30. That was with two petrol 220hp Mercruisers. Ironically the bigger 260s are supposed to be more economic planing.
It will be interesting to see how they get on over the next few weeks. They have their instructor who did their training onboard at the moment, moving the boat to Utrecht, where they live, to load up with supplies and personal stuff then moving up to Friesland over the next three weeks. We will join them on the 25th and take over for our first four week stint on 29th
 
I hope you've added fuel stabilisers or you could have problems when you get back to the boat.

Indeed I have.

Given that the local Muppets are draining every diesel pump dry around here within hours of a new delivery I'm regarding the diesel in the boat tank as my own personal strategic reserve and if need be I'll suck it out and put it in my car.
 
I deliberately ran the boat tank as low as I dared - just into the 'reserve' level on the gauge - before I last brought the boat ashore. :rolleyes: I was planning on completely drain it while ashore, and clean it (probably for the first time in 47 years!) as best as the limited access would allow.

The actual consumption in use (27ft sailing boat, diesel engine) is modest and almost negligible amongst all the other costs of ownership (though it all adds up), so I've never actually calculated it, but I guess a couple of litres or so an hour. The tank is huge, 115 litres, given the consumption (and would give more than 48 hours and 250 miles continues running), so I doubt I'll be filling it up soon.

I usually fill my car each weekend on a particular regular journey home where I pass a low priced garage, but one time recently couldn't be bothered to stop that particular night. So I am probably to blame for the attack on Iran a few days later!;)

More recently my car was low on fuel, and planned to stop at a different more local 'village' type garage where not long ago I'd filled my motorbike and been pleasantly surprised that the fuel was only 124.9p per litre, however when I arrived this time it had shot up to 159.9p! :oops:

Fuel rationing worries me more than cost, if there's a shortage for haulage/agriculture/public transport I can't see it being considered very socially acceptable to fill up a pleasure boat. Then there's being able to get to the boat at all, if there isn't much fuel around I'd need to save it at weekends to be able to get to work on weekdays. The outcome is totally unpredictable (like everything else about the current situation) from very minimal impact all the way through to no sailing over the summer.

I can vaguely remember how fraught it all got during the 1970s oil crisis. I recall being on a motorbike trip from Essex to Worcester on our 1950s British 500cc big singles (me AJS Model 18, mate Velocette MSS, since you ask), and being at very serious risk of being stranded through lack of fuel. We were running on fumes well before eventually finding, somewhere in the wilds of Oxfordshire IIRC, one of the few garages still open. Even then we had to plead with the woman running the place to allow us more than the ration (a half gallon?) they were operating so we could be confident of reaching our destination.
 
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