The website RarityGuide.com has compiled a list of tip texts shown during level screens for players with high-performance such as yourself. Follow this link to access the list.
Shepard's current health bar will regenerate, but already-depleted segments can only be restored by using First Aid from the Power Wheel.
Carrying too many weapons will increase cooldown, effectively slowing down how often you can use powers.
The Widow, Black Widow, and Javelin weapons can fire through enemies and light cover. Mod other weapons, like the Mattock and Claymore, to apply this devastating effect.
Heavy Melee is an effective attack against unarmored or unshielded enemies
Use the First Aid power to resuscitate a fallen squadmate from a distance. This consumes medi-gel. Move to your comrade to resuscitate them without using medi-gel.
Use hard-hitting weapons against armored opponents. Incendiary and armor-piercing ammo also help.
When a Ravager's sac breaks, Swarmers are released. Swarmers are weak, but a group of them can kill or keep shields from regenerating.
Cannibals form armored plating by reclaiming fallen Cannibals and Husks. Shooting these plates deal no damage to the Cannibal until they are blown off
Weapons have thermal clips to prevent overheating. Clips use a universal design, so retrieve compatible clips from combat areas and fallen enemies.
Best Answer
Toward the end of the game at least, the functional fuel depots seem to mostly be concentrated in the lower left-hand corner of the Galaxy Map. In the following image, systems with fuel depots accessible directly from Mass Relays are circled in green (six total):
As you may already know, most systems will also contain fuel depot wreckage sites that you can scan for, for a one-time fuel bonus. However, if you're just looking to quickly top off your tank, visiting one of the above-circled systems is the way to go.
In particular, I believe Annos Basin (to the left of the selection cursor on the map) is available to the player for most of the game, and is never marked as being Reaper controlled.