difference between petrol and diesel fuel tanks

[kevinh]

Hi.
The tank of my recently inherited Millenium is leaking quite badly, having clearly been patched in the past, and I've been advised to get a new one.
Having read a bunch of threads on here about tweaking Fiesta tanks to fit, I figured that is what I should do, so I searched around.
I found a new one on ebay for only £110, but it is listed as diesel and the vendor tells me I should buy the petrol one for £30 more.
Diesel: NEW Fuel Tank - Diesel - fits Ford Fiesta IV (JA_, JB_) 1.8D 1995-2002 - 1059852 | eBay
Petrol: NEW Fuel Tank - fits Ford Fiesta IV (JA_, JB_) 1.0-1.6 1995-2002 - 1084659 | eBay

But I'm at a loss to imagine how or why they would be any different. Is this just a scam to exploit demand, or can anyone tell me what a difference might actually be?

 

[caprixpack]

This is from when i fit my new tank in my millennium, it was an almost direct fit with no need for internal modifications. The only modifications were a lenght of fluoro silicone hose for the breather as the fiesta tank take off it at a different angle and having to drill 2 holes and rivet the fuel filter bracket in place.
https://www.projectpuma.com/threads/my-millennium.33922/post-386973
My tank came from euro car parts and was more expensive, but gave me piece of mind that if It didn't fit I could drive 10 minutes and take it back.