I didn't want to spend $200 to $300 for an aftermarket fuel tank so I went to a wrecking yard and pulled a stock tank from a gas car. Using couplers and threaded rod I extended the existing tank mounts, welded a mount for my second tank and vilo, for less than $50 I have another 18 gallon tank with stock sending unit I wired so when I switch tanks my fuel gauge reads the tank I am running off of. The great things about the the W124 is they also have enough room in the fuel port area to add another port. I am in the process of doing this as well. I now have two stock tanks and can go nearly 1000 miles on WVO (in the summer) without filling up. No I just need a consistent supply of WVO. I get enough for free vacation travel but not daily use.

2-300 is cheap.


Pictures would be great, and what is a vilo?


Nice. Can you explain or share a picture of how the gauge switches senders at the same time as fuel switching? Did you use a single throw multi pole switch to change over 2 circuits with one switch?


This is an awesome feature and I have no idea why there is an indent for a second port.


Why only summer?


Where are you located? Are there not many restaurants/eateries where you are?

Share some pictures !

__________________
83 300TD (need rear wiper assembly dead or alive)
84 300SD Daily driver
85 300TD almost 400k miles and driven daily.
98 E300D *sold
86 300SDL *sold and made flawless 10 hour journey to new home.

$200 to $300 is cheap but $50 is cheaper. I am getting pictures together this week to upload. Viola is what I meant. My grandfather use to say it a lot after explaining how something worked. I used an on/off switch with power through it to two SPDT relays. I have the fortune of having a sister-in-law and her husband who are electrical engineers. He came up with the plan. As for the second fuel port. To clarify. I am able to fill both tanks as you normally would, no need to open the trunk. Both are located at the same stock location, this is not quite done but I will have it together in about a week. I will post pictures. If you have a W124 you can see this next time you fill up. I only run in summer or long trips because though it all works well, I typically run short trips to work and back and found in the cold winters my car does better on blended or straight diesel. We also have a local biodiesel station that is less that dino diesel that I often run. I am in Southern Oregon. There are many restaurants and I do some collecting. I get enough to pay for vacation trips and our out of town trips, but I only drive about 500 miles a month other than that it is easier to just fill up once a month.

1991 350 SDL Conversion to WVO

I've put about 45k on this car since the conversion. I pull a small trailer on long trips that extends my range to about 4000 miles.

__________________
Greg
2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

I love it. I have a tow hitch and will do the same if we go on any long road trips.