20-year-old Gasoline Fuel

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
pbob42
Posts: 5
Joined: Mon Jul 07, 2025 6:32 pm

20-year-old Gasoline Fuel

Postby pbob42 » Mon Jul 07, 2025 6:35 pm

The fuel tank on a 1984 [no MODEL FAMILY] V-20 had 20-year-old gasoline—or something that 20-years ago was gasoline.

I took off the [fuel tank level] sending unit. I siphoned out all that old fuel. I put a camera inside the tank. What I saw was less than beautiful.

Q1: how should I proceed?

jimh
Posts: 13289
Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula
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Re: 20-year-old Gasoline Fuel

Postby jimh » Mon Jul 07, 2025 6:58 pm

Q2: what did you see inside the tank?

Q3: what is your goal?

Without telling readers what you saw and what you are aiming to accomplish, to offer advice on how to get there will be difficult.

fno
Posts: 261
Joined: Thu Oct 15, 2015 10:01 pm
Location: Florida

Re: 20-year-old Gasoline Fuel

Postby fno » Wed Jul 09, 2025 10:08 am

Unless brand new, the inside of a 20 year old gas tank will always look "less than beautiful" The question of how much less needs to be better described. As for question #1: Be happy the tank is not leaking fuel (that always falls into the "less than beautiful category), put some gas in the boat and try to reverse 20 years of neglect. Another option is to get another tank installed and sleep well at night. Last option is to sell the boat to some other sucker.