It is recommended use 'mods' folder, this article explains how:
http://openiv.com/?p=1132

Installation:

Open your OpenIV: GTA V ...

in edit mode.

in 1.0 version (Coca & Pepsi)
go to:
GTA V\x64i.rpf\levels\gta5\props\recreational\v_coin_op.rpf\
Replace:
-prop_vend_soda_01.yft
-prop_vend_soda_02.yft
-prop_vendsoda_01.ytd
-prop_vendsoda_g.ytd

For vending machines in the gas stations
go to:
GTA V\x64h.rpf\levels\gta5\interiors\v_int_68.rpf\
Replace:
-v_68_broeknvend.ydr


1.5 version add
*7up , Coca-Cola , Pepsi , Sprite

1.6 version add
*Dr. Pepper , Fanta

1.9 version add
*original files , Mountain Dew , Mirinda , Delaware Punch

In "Separated Brands" folder both machines (Ecola & Sprunk) have same brand.
You decide which one use to replace the ECola machines and how to Sprunk. In

GTA V\x64i.rpf\levels\gta5\props\recreational\v_coin_op.rpf\

prop_vend_soda_01.yft & prop_vendsoda_01.ytd
to replace ECola machines

prop_vend_soda_02.yft & prop_vendsoda_g.ytd
to replace Sprunk machines

2.0 version add
*soda can
*add in every brand, vending machines for the gas stations

For soda can
go to:
GTA V\x64c.rpf\levels\gta5\props\lev_des\v_minigame.rpf\
Replace:
-prop_ld_can_01.ydr
-prop_ld_can_01b.ydr

For vending machines in the gas stations
go to:
GTA V\x64h.rpf\levels\gta5\interiors\v_int_68.rpf\
Replace:
-v_68_broeknvend.ydr

2.2 version
*Replaces the original size for Coca & Pepsi with high resolution texture.

Note:
If you have any problems with the new resolution, you can download the previous version 2.0 in the following link:
Download 2.0 Version
..........
israelsr MODS