Hey so little info about my truck. She is a 92 F-250 HD with a N/A IDI. Fresh injectors, new tank. IP starting to get a little tired, turned up a flat. Rebuild in the next 10k coming for it.

Well thanksgiving (Canadian) I deep fried a turkey which left me with approx 15L of canola oil. I know there is a lot to do if you want to run this long term.
I just want to know what I'm looking at in terms of what is required to pour it into my tanks and recoup a bit of money and not having it sit around any longer than it has to.
I've heard of the double jean leg filtering method. Will I be good with that or will I need to do more? Not looking to run this pure. Would be tossing it in, then filling the rest of the tank with diesel and diesel conditioner (truck runs leaps and bounds better with the ulsd crap we have up here).