I think someone asked this last year and the eventual consensus was there is no lube in New Zealand. ;)
But seriously… you need to try a few different types and see what works for you. For example, some vegetable oils are thinner than others. I find that if it’s too thin it’s too slippery, and I can’t get enough grip. Some good ones, like olive oil, have a scent to them that you may not want to have around wherever you jelq. Safflower oil, canola (rapeseed) oil, corn oil and grapeseed oil all don’t have much smell to them. Peanut, sesame, olive, almond, walnut have some or a lot of scent.
I use an oil that’s a combination of vitamin E and safflower oil. It’s unscented and has enough viscosity to allow a better squeeze as I jelq. And the vitamin E heals the skin after I’ve been yanking my cock for two hours.
If you have health food stores around they probably have several different types of massage oils. They work great.
Do you have petroleum jelly in New Zealand? That’ll work, and you can have a little tub in the shower. My feet get cracks in them from walking barefoot so much, so that’s how I justify having it around. You must have a water based lube like KY jelly in NZ. Look around the aisle in the store that has the girl stuff. There should be lube somewhere around there that will work for you.
One thing to remember: if you use an oil based lube you shouldn’t also use it on condoms during sex. It will make the condom break. Get a water based lube for sex.