Mobility Provisions

These provisions improve the tank’s mobility, increasing top speed (Gear Oil only), turret turn rate (Fuel only), acceleration, and traverse speed.

Fuel

Fuel is a standard provision, every tank that can use provisions has Fuel as an option.

There are 2 Fuel provisions:
Standard Fuel (3% Fuel)
Improved Fuel (10% Fuel)

What benefits does this give?
If you take 10% fuel your tank will receive
+10% Engine Power
+10% Traverse Speed
+10% Turret Turn Rate.

3% Fuel does the same, but it only gives 3% of each.

What tanks to use Fuel on?
Every tank that has fuel should at least use the 10% Fuel.
There are very few exceptions since Fuel gives such a huge benefit to your tank in battle.

The only exceptions would be tanks with high acceleration, low top speed, good traverse speed.
Also tier 4 tanks which can only take 1 provision (Food is usually more important than Fuel).

Usually there is no reason to drop 10% fuel from your provision loadout. Most tanks don’t have other good provision options to warrant losing 10% of your mobility.

When to double stack 10% & 3% fuel together?
This is up to you, but tanks that would benefit from this are usually tanks that have an aspect of mobility that is lacking.
Examples:
E 75 TS, while it has great top speed, its acceleration and traverse are quite poor.
Kunze panzer & LT-432, both have great top speed of 70km, but their effective acceleration is quite low for a light tank.

Gear Oil

Gear Oil is a special provision, not every tank has them as an option.

There are 2 Gear Oil Provisions:
Gear Oil (3% Gear Oil)
Improved Gear Oil (6% Gear Oil)

What benefits does it give?
3% Gear Oil gives:
+3% Engine Power
+3% Traverse Speed
+2km/h Forward Speed
+2km/h Reverse Speed.

6% Gear Oil Gives:
+6% Engine Power
+6% Traverse Speed
+4km/h Forward Speed
+4km/h Reverse Speed.

What tanks to use Gear Oil on?
Again, every tank that has these provisions should use at least the 6% Gear oil. Currently there is no tank in the game that has this provision that should not use it, as all of them are HT that benefit from the increased top speed, and especially the reverse speed.

When to double stack 6% & 3% Gear Oil together?
Never. Doing this means you sacrifice either 10% Food or 10% Fuel, which neither are worth losing on these tanks.