Filled both tanks - BRUTAL

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

mxer147

83 K20, 350 vortec, 465, 208, 14/10, 4.10, 33s
Joined
Feb 8, 2023
Posts
631
Reaction score
2,306
Location
Colorado
First Name
Jack
Truck Year
1983
Truck Model
k20
Engine Size
350
Yea, I topped it off and put a small amount in a gas container, Walmart Murphy’s blue, ethanol free 87.
 
Last edited:

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
7,086
Reaction score
12,465
Location
Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
Topping off to the caps?
Idk maybe someone has volumetrically measured these tanks (not that it matters) but my fuel gauges work very well and I’ve run a tank down to zero needle movement and a tad below E and stuffed about 19gal into it literally filled to the cap as it had fuel visible in the filler neck. Truck was still running on that tank when I pulled in, so obviously not totally empty.
I just couldn’t envision getting to the gas station under your own power and putting over 21 gal per tank into each 20 gal tank.
Hence why I asked or assumed he had a rear tank.
Just gauging how “empty” these tanks are when they get near the published capacity.

But OP replied, so thanks!
 

mxer147

83 K20, 350 vortec, 465, 208, 14/10, 4.10, 33s
Joined
Feb 8, 2023
Posts
631
Reaction score
2,306
Location
Colorado
First Name
Jack
Truck Year
1983
Truck Model
k20
Engine Size
350
Yea, I was running on fumes when I pulled up to the pump. Each of the two tanks took nearly 20. First time I’ve ventured out over 5 miles, went nearly 20, forgot to put on the license plate too, didn’t notice until I got to the station.

It actually drive’s pretty good but man it’s sure is a rough riding truck. I just looked at the suspension bushings and I believe they are over due for grease or replacing. I also couldn’t find the tank vent hoses and there isn’t but one motor vacuum line connected to the canister. I’m going to need a vacuum diagram to determine what needs to be connected.
 
Last edited:

AceHanlon

Full Access Member
Joined
Apr 5, 2023
Posts
56
Reaction score
77
Location
Halifax, PA
First Name
Logan
Truck Year
1987
Truck Model
R10
Engine Size
350
I have dual tanks on mine as well but never filled up both since the passenger side never worked as long as I had it. Brutal enough to fill up one side with these prices.
 

AZ Highlander

Full Access Member
Joined
Nov 15, 2022
Posts
309
Reaction score
864
Location
Prescott AZ
First Name
Frank
Truck Year
1987
Truck Model
K15 (aka V1500)
Engine Size
350 (5.7L)
I try to keep my one 20 gallon tank in my 84 C2500 at the half full point. Gas here in North Central Arizona has gone up almost a dollar a gallon in the last month. Everyone is about $3.89 for the grocery store stations, to $4.19 for the brand names(76, Shell, Chevron).
What part of north central AZ?
Thursday, these were the gas prices in the Verde Valley
You must be registered for see images attach
 

WP29P4A

Full Access Member
Joined
Jul 18, 2021
Posts
890
Reaction score
1,517
Location
Nevada
First Name
Mike
Truck Year
1987
Truck Model
Sierra Classic V1500
Engine Size
350 TBI
We are still paying mid to high $4.s per gallon. I was happy when it dipped below $5.00 so I could fill the tank before it stopped at $100.00 with a partial tank.
 

84GMCSierra

Full Access Member
Joined
Feb 26, 2023
Posts
385
Reaction score
453
Location
Central Arizona
First Name
Paul
Truck Year
1984
Truck Model
C2500
Engine Size
350
I know that Maverik. Mingus and 89a. I've been getting my gas at the Speedway at Main and 260. Using my card I get .05 off a gallon.
 

Radiohead

That guy on the Columbia
Joined
Mar 17, 2022
Posts
2,488
Reaction score
8,119
Location
Low Earth Orbit where it's safer
First Name
Eric
Truck Year
MCMLXXIX
Truck Model
C-20 Silverado Camper Special
Engine Size
454 crazy cubes, or 7.4 luscious litres
Imagine how independent truck drivers feel. You guys are upset over buying 40 gallons. Probably once a week.
Try 150-200 gallons a day, every day you're trying to earn your living. Perspective is key.
 

AZ Highlander

Full Access Member
Joined
Nov 15, 2022
Posts
309
Reaction score
864
Location
Prescott AZ
First Name
Frank
Truck Year
1987
Truck Model
K15 (aka V1500)
Engine Size
350 (5.7L)
I know that Maverik. Mingus and 89a. I've been getting my gas at the Speedway at Main and 260. Using my card I get .05 off a gallon.
I live over the hill from you to the west, but was over in your neck of the woods this week. Gas prices are identical at the Maverik next to the YRMC hospital over here.
 

SirRobyn0

Full Access Member
Joined
Dec 6, 2019
Posts
6,755
Reaction score
11,406
Location
In the woods in Western Washington
First Name
Rob
Truck Year
1984
Truck Model
C20
Engine Size
305
Idk maybe someone has volumetrically measured these tanks (not that it matters) but my fuel gauges work very well and I’ve run a tank down to zero needle movement and a tad below E and stuffed about 19gal into it literally filled to the cap as it had fuel visible in the filler neck. Truck was still running on that tank when I pulled in, so obviously not totally empty.
I just couldn’t envision getting to the gas station under your own power and putting over 21 gal per tank into each 20 gal tank.
Hence why I asked or assumed he had a rear tank.
Just gauging how “empty” these tanks are when they get near the published capacity.

But OP replied, so thanks!
I've got two 20's. My system is to run the left tank to E or a little below, and then fill the right tank at 3/8 - 1/4. Well last Thursday I put $148 in her, 35ish gallons.

OP, look at it this way, it's the same amount if you have one 20 gallon tank or 2, you just pay a larger sum at one time and stop for gas 1/2 as much if you fill both tanks.
 

Latest posts

Forum statistics

Threads
44,414
Posts
956,958
Members
36,736
Latest member
bartram89
Top