here's my favourite:

vg 70%
pg 30%

/s

This is entirely anecdotal, but in my experience flavors that are colorless are more gentle on coils. Same to be said for juices with less concentrate.

Again, just one guy's experience.

My adv is

3% extreme ice

1% inw eucalyptus mint

.5% koolada.

Cotton stays fresh for quite a while.

I like this a lot. Pog Remix. Crisp, surprisingly full, and clean even with the Super Sweet which is entirely optional. Fantastic right off the shake. I like to make different variations of it. For instance, right now I am doing strawberry + pomegranate, orange, guava. As long as you have a sweet fruit + citrus fruit + guava it seems you can't go wrong. Honeydew, lime, guava will be my next experiment. Guava must stay for the Pog feel, but guava may or may not be for you. I often like to swap Cap Sweet Guava for FLV Pink Guava for a slight leafy, less sweet taste.

(Prickly Victory) by u/hashslingingslashur is as "clean" as it gets. Very flavourful and fresh!

Edit: new link formatting, TIL.

I've gone through 360ml of my Lung Coolant without even rewicking before. Normally I rewick every 120ml just because it tastes so damn good on a fresh wick, at 360ml it didn't taste any different than it does at 60ml or 120ml. It's super clean and super cold.

I also routinely go through 120ml of my Slammer without rewicking. It's a POG recipe that I'm pretty proud of.

I've done 120ml at a time of Vurve's Best Damn Pink Lemonade a shit ton of times, this is my favorite recipe that isn't my own. It's super refreshing and light enough that there's no palate fatigue from vaping it constantly, the flavor is perfectly on point.

To echo what others have said: clear flavors, low percentages, and no added sweeteners definitely help decrease gunkage. I hate rewicking/rebuilding and if I can't comfortably go through a full 120ml of a recipe, that recipe is almost definitely not going to be made by me again.

Idiot's mango blossom macaroon is fairly clean while also having some natural sweetness to it.

My favorite that qualifies, and it's also a favorite of my taste testers:
Purple Lemonade
4% INW Grapes
5% LA Lemonade
.5% INW Lemon Mix
WS-23 & FA Polar Blast (to taste. I like 1-1.5% each. You should start at .25% each and work your way up. You want lemonade, not neocitran, but also not a slushie.)

This is the cleanest diy tobacco juice I've vaped and it's insanely good. If you don't have FLV Connecticut Shade go order it. Its awesome

https://alltheflavors.com/recipes/71750

I recently tried a Flavourart line Pazzo, King in particular.

It’s a black currant, sugary candy. I’m not a fruit vaper, and I really enjoy it.

The coil in my doggystyle looked brand new after 4 tanks. It ran really clean!

Nebula by /u/matthewkocanda

my favorite juice and can easily get through +60ml without any coil gunking

A variant of the mega melons recipe that was doing the rounds a few years ago. I dialled this in a couple of years ago and have been making 1-2L batches since :)

TFA Papaya 6%
TFA Cantaloupe 6%
TFA Mango 5%
TFA Dragonfruit 2.5%
TFA Marshmallow 1%
WS-23 (30%) 2%

Usually go for max VG for convenience, but recently trying 75/25 as I've switched to a KFv5 for my ADV device.

I hit this all day in multiple devices - in my low-wattage tanks or squonkers the cotton stays white, coils clean for a month and beyond

1.0% INW Lemon Concentrate
0.5% FLV Pink Guava

Refreshing summer vape. I don't change the coils in my tank with this one more than once every 120-200ml.

I can also get 120ml out of PMP pretty comfortably:

5% TFA Pineapple
5% TFA Mango
5% TFA Papya

Both recipes are good with 0.5% Sweetener as well but obviously coils tank a lot quicker when added. I tend to rotate using it versus not.

My recipe:

Strawberry coke

Inw cactus .5% Tpa dragon fruit 1% Tpa strawberry 3% Fa red touch 3% Fa cola 3% Ws-25 1-2% (depending on how I’m feeling)

Edit: I will sometimes swap out the red touch for cap sweet straw at the same %

My cleanest tasting recipe so far is 6% Banana Cream 2% Pina Colada 2% lemonade Cookie 0.5% sugar cookie

Nice sweet banana on the front end and tangy doughy on the exhale

The ones with no sweetener or sweetened flavors.

I can get at least 90-100ml out of [this] (https://alltheflavors.com/recipes/55462) recipe before rewicking. Only because I'm lazy. I probably should rewick around 60ml in.

EDIT: it's a citrus vape you may like.

Grack Juice (e-l-r) is refreshing, addictive, and even the cotton lasts forever with it.

I have yet to try it without koolada but I want to after I order more grape juice. Not a koolada/Menthol fan.

I'm quite new to DIY, but a commercial one i found that seemed like i could vape endlessly on the same coil was [Beard Vape's Tan](http://www.giantvapes.com/tan/) (first link that came up on a google search)

Most of what I mix is "clean" because I can't stand gunky coils and changing my wick multiple times a day. However, when I want something super simple... something to give my taste buds a break, I just vape Flavorah Eisai at 0.50% (you'd probably have to double that percentage) It's a light, somewhat fruity, slightly floral and sweet (but not perfumey) flavor. I also like lemonade but I think I'm becoming a lemon mute because I vaped lemonade for too many months in a row way back when...

It's a simple recipe of equal parts FE Lemon and FW Natural Lemonade. I use 2% for both, but you may need to increase that. You can add sweetener to your taste, additional fruits (strawberry, raspberry etc), kooling agents... Pretty much anything but it's good just like this.

Can't help myself. I'm posting this for the benefit of others, maybe not yours. The only recipe I've mixed that I won't get tired from, is virtually shake and vape, and keeps coils surprisingly clean is... Strawberry Trinity!. I don't mind changing cotton. It's just that I'd rather go through a day or two without cleaning coils and/or swapping atomizers.

Most diy flavors are good, untill you get into desserts but you can still easily get 60 ml as long as you dont add artificial sugar and keep the percentage of the dessert flavor low. I did lemon cheese cake and went 100 or more with out changing because I did only 3 percent cheese cake and 4 percent lemon. Not as flavorful as stores but I'm way more of a custard not sweet kind of person I've been thinking about dabling in chocolate but idk because all my test bottles are gone and only have a 120 ml bottle.