T&T: fuel tank question

[Keith]

Do you have marks on the tanks or tubes to show you how much fuel you have 
at various levels? If not, I can let you know what mine are, or find the 
calibration in some of the old Krogen newsletters probably. Those tanks hold 
350 gallons each, so there's a lot of fuel in there if they're above the 
sight glass. I never even worry about mine until they drop where I can get 
an actual reading. The highest mark on mine is 250 gallons, but based on 
that spacing, I'd guess that at the top of the sight tube the tanks have 300 
gallons.

I add two things to my fuel... 1 Qt. Marvel Mystery Oil per 100 gallons of 
diesel to restore lubricity lost with the lower sulfur diesel, and Soltron's 
fuel treatment. The latter can now be found at West Marine et al. Their 
usage instructions say to shock the system the first time, then use it as a 
regular maintenance item. I shocked mine, had the fuel polished, then used 
it in their maintenance dose. My fuel has been clean ever since. I did 
install an onboard polishing system per Cap'n Will's plans, so this helps 
keep it clean as well. I don't really try to keep them full, but depending 
on how much cruising I'm doing, I'll either refill when they get about half 
empty, or run them down to maybe 100 gallons each then fill up.


Keith
_____
Get forgiveness now -- tomorrow you may no longer feel guilty.
----- Original Message ----- 
From: "badornato" <adornato@gmail.com>



>i just bought a 85 krogen 42 and the old owner told me he always kept
> the fuel tanks "pretty full
> down in the engine room the sight glass tubes are full to the top on
> both sides...so how many gallons do you think i burn till the sight
> tubes show a level..?
> are people putting biocides in their tanks in the winter..?
> do most people keep their tanks full?
> if i am not cruising and just using the boat for day cruises, and
> using it perhaps 200 hours a year, how should i manage the fuel?