Difference between revisions of "Potion of oil"

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{{potion|name=oil|cost=250}}
 
{{potion|name=oil|cost=250}}
  
A '''potion of oil''' is the only [[potion]] that can be [[light sources|lit]] for an extended period of time. It has numerous other uses.
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The '''potion of oil''' is a [[potion]] that appears in [[NetHack]].
  
== Effects ==
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==Description==
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The potion of oil has a surprisingly wide number of applications, but is primarily intended to be fuel for [[oil lamp]]s. This is done by [[dip]]ping the lamp into the potion of oil. Make sure that neither object is lit, or the potion will be wasted; if the lamp is lit and the potion is not, the potion will explode instead.
  
Attempts to use a [[cursed]] potion of oil can cause the oil to spill over your fingers, making them [[slippery fingers|slippery]]. If this happens in a shop and causes you to drop your weapon, the shopkeeper will consider your weapon his newfound property. This is another reason not to apply potions in shops. Applying a [[towel]] cleans your hands and removes this effect.
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Doing anything with a [[cursed]] potion of oil may cause the oil to spill and make your finger [[slippery fingers|slippery]].
  
=== Quaffing ===
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===Dipping other objects===
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Dipping a [[unicorn horn]] into a potion of oil gives the horn an "oily sheen", which identifies and uses up the potion but has no further effects. Dipping into a lit potion of oil uses up the potion and will burn the dipped item(s) if possible.
  
[[Quaff]]ing a potion of oil is not useful and usually [[exercise|abuses]] your [[wisdom]].
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===Lighting oil===
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You can light a potion of oil by [[apply]]ing it, and snuff it out by applying it again; this also auto-identifies the potion. A lit potion of oil can be [[throw]]n as an [[Explosion#Fiery explosion|explosive]] projectile, dealing 4d4 fire damage to anything caught in the explosion.
  
=== Squeaky boards ===
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===Quaffing===
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[[Quaff]]ing a potion of oil only [[exercise|abuses]] your [[wisdom]] while identifying the potion; quaffing a lit potion additionally deals 3d4 fire damage (1d4 if [[fire resistant]]). However, if you are polymorphed into a monster that likes fire (e.g. fiery monsters such as [[fire vortex|fire vortices]] and [[salamander]]s), you instead exercise wisdom and take no damage.
  
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===Repairing weapons ===
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Oil can also be used to fix [[erosion|damaged]] iron weapons; dipping a rusty or corroded weapon into a non-cursed potion of oil, removes one degree of erosion.
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===Squeaky boards===
 
A potion of oil can untrap a [[squeaky board]], similar to a [[can of grease]].
 
A potion of oil can untrap a [[squeaky board]], similar to a [[can of grease]].
  
=== Lit potions ===
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==Strategy==
 
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===Identification===
You can light the oil by [[apply]]ing the potion, and snuff it out by applying it again. A lit potion of oil can be [[throw]]n at an enemy to [[Explosion#Fiery explosion|explode]] for 4d4 fire damage or thrown up to cause fire damage to yourself, removing [[Sliming|slime]]; no damage is incurred if unlit. Quaffing a lit potion of oil deals 3d4 fire damage (1d4 if [[fire resistant]]) and abuses wisdom. However, if you are polymorphed into a monster that likes fire, you instead exercise wisdom and take no damage. Monsters that like fire include [[fire vortex|fire vortices]], [[flaming sphere]]s, [[salamander]]s, and [[fire elemental]]s.
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Characters that start the game with an oil lamp will have potions of oil already identified in the discoveries section.
 
 
Dipping into a lit potion of oil will burn the dipped item (if appropriate), using up the potion whether the item was burned or not. This can be used to identify scrolls of fire and spellbooks of fireball (which won't burn up, unlike other scrolls and spellbooks) or formally identify fireproofing. It is a relatively wasteful way to do either, though, since the potion will disappear and items which are not fireproof will be damaged or destroyed.
 
 
 
=== Fixing damaged weapons ===
 
  
Oil can also be used to fix [[erosion|damaged]] weapons. By dipping a rusty or corroded weapon into a non-cursed potion of oil, it loses one measure of erosion. To completely repair a thoroughly corroded weapon, you thus need three potions of oil: from thoroughly corroded to very corroded to corroded to uncorroded. Oil does not repair rotted or burnt weapons, nor does it repair damaged armor.
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Identifying a potion of oil is fairly easy, as it is the only potion that you can [[apply]], and randomly testing potions using this method is generally safe. Doing this with a potion owned by a shop will result in you being charged a [[Yendorian Fuel Tax]] on top of paying for the potion. [[Magic lamp]]s behave just like oil lamps when dipped in potions of oil, so you cannot identify them this way.
  
=== Refilling lamps ===
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The [[scrolls of fire]], [[spellbook of fireball]] and other [[fireproof]]ed item can potentially be identified by dipping into a lit potion of oil, but this method is ultimately a waste of a potion (as well as likely wasting whatever you tested with it) and is not recommended.
  
An empty [[oil lamp]] can be refilled by [[dip]]ping it in a potion of oil. However, if you attempt to do this while either the lamp or potion is lit, the potion will be wasted. (If the lamp is lit and the potion is not, the potion will explode!) [[Magic lamp]]s behave just like oil lamps in this respect, so you can't identify them with oil.
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A lit potion of oil can be used to cure [[sliming]] if thrown upward or quaffed.
  
==Identification==
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Potions of oil are suitable for untrapping and reparing if you have no other use for them; cans of grease are rechargeable and thus may be a more preferable option for the former, while in the latter case a [[confused]] reading of a [[scroll of enchant weapon]] will both remove all damage and fooproof the weapon.
  
Identifying a potion of oil is easy: just try to [[apply]] every new potion you find. If the potion lights, it auto-identifies as oil. Do not do this when the potion is owned by a shop, or you will be forced to pay for the potion and will be charged [[Yendorian Fuel Tax]].
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==Messages==
 
 
If you start the game with an [[oil lamp]], potions of oil are already identified for you.
 
 
 
Dipping a [[unicorn horn]] into a potion of oil gives the horn an "oily sheen", which identifies and uses up the potion but has no further effects.
 
 
 
== Messages ==
 
 
{{message|Ahh, a refreshing drink.|You drank a lit potion of oil, and you are polymorphed into a monster that likes fire.}}
 
{{message|Ahh, a refreshing drink.|You drank a lit potion of oil, and you are polymorphed into a monster that likes fire.}}
 
{{message|This tastes like castor oil.|You drank a cursed potion of oil.}}
 
{{message|This tastes like castor oil.|You drank a cursed potion of oil.}}
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==Variants==
 
==Variants==
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===SLASH'EM===
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In [[SLASH'EM]], it is possible to disarm a fire trap with a non-cursed [[potion of water]], similar to using a potion of oil on a squeaky board; this will also generate 1&ndash;4 potions of oil based on your [[Luck]]. Since oil can then be diluted back to water, the large number of fire traps in Gehennom offer an effective way of multiplying one's water potions.
  
=== SLASH'EM ===
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===Slash'EM Extended===
In [[SLASH'EM]], it is possible to disarm a fire trap with a non-cursed [[potion of water]], similar to using a potion of oil on a squeaky board. This will also generate 1&ndash;4 potions of oil based on [[Luck]]. Since oil can then be diluted back to water, the large number of fire traps in Gehennom offer an effective way of multiplying one's water potions.
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Diluting a potion of oil in a pool will summon the [[Keystone Kop]]s.
 
 
 
 
=== Slash'EM Extended ===
 
Diluting a potion of oil in a pool will summon the [[Keystone_Kop|Keystone Kops]].
 
 
 
 
 
== History ==
 
  
In previous versions of ''NetHack'', it was possible to indirectly identify the potion without actually applying it (and therefore avoiding payment in shops) by dropping everything else that could be applied, then hitting {{kbd|a}}. If the potion was a potion of oil, the player was asked what they wanted to apply; otherwise they would be told they have nothing that can be applied. This is no longer true since [[NetHack 3.6.0]], which now always shows the applying prompt as long as the player has at least one potion in their inventory, regardless of whether it can be applied or not.
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==History==
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Prior to [[NetHack 3.6.0]], it was possible to indirectly identify the potion without actually applying it (and therefore avoiding payment in shops) by dropping everything else that could be applied, then hitting {{kbd|a}}. If the potion was a potion of oil, the player was asked what they wanted to apply; otherwise, they would be told they have nothing that can be applied. As of 3.6.0, the applying prompt always appears as long as the player has at least one potion in their inventory, regardless of whether it can be applied or not.
  
 
[[Category:Potions|Oil]]
 
[[Category:Potions|Oil]]
{{nethack-343}}
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{{nethack-366}}

Revision as of 07:22, 19 January 2021

! Pink potion.png
Name oil
Appearance random
Base price 250 zm
Weight 20
Monster use Will not be used by monsters.

The potion of oil is a potion that appears in NetHack.

Description

The potion of oil has a surprisingly wide number of applications, but is primarily intended to be fuel for oil lamps. This is done by dipping the lamp into the potion of oil. Make sure that neither object is lit, or the potion will be wasted; if the lamp is lit and the potion is not, the potion will explode instead.

Doing anything with a cursed potion of oil may cause the oil to spill and make your finger slippery.

Dipping other objects

Dipping a unicorn horn into a potion of oil gives the horn an "oily sheen", which identifies and uses up the potion but has no further effects. Dipping into a lit potion of oil uses up the potion and will burn the dipped item(s) if possible.

Lighting oil

You can light a potion of oil by applying it, and snuff it out by applying it again; this also auto-identifies the potion. A lit potion of oil can be thrown as an explosive projectile, dealing 4d4 fire damage to anything caught in the explosion.

Quaffing

Quaffing a potion of oil only abuses your wisdom while identifying the potion; quaffing a lit potion additionally deals 3d4 fire damage (1d4 if fire resistant). However, if you are polymorphed into a monster that likes fire (e.g. fiery monsters such as fire vortices and salamanders), you instead exercise wisdom and take no damage.

Repairing weapons

Oil can also be used to fix damaged iron weapons; dipping a rusty or corroded weapon into a non-cursed potion of oil, removes one degree of erosion.

Squeaky boards

A potion of oil can untrap a squeaky board, similar to a can of grease.

Strategy

Identification

Characters that start the game with an oil lamp will have potions of oil already identified in the discoveries section.

Identifying a potion of oil is fairly easy, as it is the only potion that you can apply, and randomly testing potions using this method is generally safe. Doing this with a potion owned by a shop will result in you being charged a Yendorian Fuel Tax on top of paying for the potion. Magic lamps behave just like oil lamps when dipped in potions of oil, so you cannot identify them this way.

The scrolls of fire, spellbook of fireball and other fireproofed item can potentially be identified by dipping into a lit potion of oil, but this method is ultimately a waste of a potion (as well as likely wasting whatever you tested with it) and is not recommended.

A lit potion of oil can be used to cure sliming if thrown upward or quaffed.

Potions of oil are suitable for untrapping and reparing if you have no other use for them; cans of grease are rechargeable and thus may be a more preferable option for the former, while in the latter case a confused reading of a scroll of enchant weapon will both remove all damage and fooproof the weapon.

Messages

Ahh, a refreshing drink.
You drank a lit potion of oil, and you are polymorphed into a monster that likes fire.
This tastes like castor oil.
You drank a cursed potion of oil.
That was smooth!
You drank a non-cursed potion of oil.

Variants

SLASH'EM

In SLASH'EM, it is possible to disarm a fire trap with a non-cursed potion of water, similar to using a potion of oil on a squeaky board; this will also generate 1–4 potions of oil based on your Luck. Since oil can then be diluted back to water, the large number of fire traps in Gehennom offer an effective way of multiplying one's water potions.

Slash'EM Extended

Diluting a potion of oil in a pool will summon the Keystone Kops.

History

Prior to NetHack 3.6.0, it was possible to indirectly identify the potion without actually applying it (and therefore avoiding payment in shops) by dropping everything else that could be applied, then hitting a. If the potion was a potion of oil, the player was asked what they wanted to apply; otherwise, they would be told they have nothing that can be applied. As of 3.6.0, the applying prompt always appears as long as the player has at least one potion in their inventory, regardless of whether it can be applied or not.