On Fri, 22 Mar 2019 17:59:47 +0000
ss wrote:

I have some old fuel (approx 1 x litre) in a can.
To avoid the hassle of going to a recycle place would I be ok to
shove it my petrol car when I have a full tank.
The litre is possibly 2 stroke mix#

Do you not know what the engine is that it was used for?

as it has a reddish tinge, its
leftovers from a small generator.

Chuck it on a bonfire (without setting yourself alight).