STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count)
STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count)
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STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count)

STP Gas Treatment For Any Gasoline Engine - 5.25 fl oz (2 Count)STP Gas Treatment For Any Gasoline Engine 5 25 fl oz 2 Count12 pack STP Gas Treatment For Any Gasoline Engine 5 25 fl oz 2 Count2 pack STP Gas Treatment For Any Gasoline Engine 5 25 fl oz 2 Count6 pack STP Gas Treatment For Any Gasoline Engine 5 25 fl oz 2 Count24 pack STP Gas Treatment For Any Gasoline Engine 5 25 fl oz 2 Count
Pack Size:Single

Key item features

  • Dual Pack: This product includes two 5.25 fl oz bottles of STP Gas Treatment, each capable of treating up to 21 gallons of gasoline.
  • Fuel Quality: It improves the quality of gasoline in your tank and helps maintain your engine's fuel efficiency by preventing harmful carbon, gum, and varnish deposits.
  • Deposit Prevention: The treatment actively prevents the buildup of harmful carbon, gum, and varnish deposits that can accumulate over time, affecting engine performance.
  • Water Removal: It effectively removes water from your gas tank, which helps prevent fuel lines from freezing during cold weather conditions.
  • Advanced Formula: Formulated with jet fuel, a high-quality carrier of active ingredients, this fuel cleaner delivers outstanding results for engine maintenance.
  • Routine Care: For excellent routine care, this gas additive should be used regularly when filling up your tank to keep the fuel system clean.
  • Engine Compatibility: This fuel treatment is safe for use in any gasoline engine and is compatible with capless gas systems.
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Current price is $4.9847.4 ¢/fl oz
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4.7 out of 5 stars
stars403 ratings116 reviews
How item rating is calculated
  1. 5 stars84% (339)
  2. 4 stars9% (35)
  3. 3 stars3% (12)
  4. 2 stars1% (3)
  5. 1 star3% (14)

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Showing 1-3 of 116 reviews

Mar 9, 2026
TheDeacon
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Add some zip to your tank

If you choose to try this treatment, give it a couple of tank-fulls to really notice the difference. While the change is incremental, after a month or so you'll notice a bit more pep in acceleration and better gas mileage. To see the greatest improvement in performance, use it on a longer trip while driving on highways. As it's not very costly, I use it regularly when I need to make a round trip of several hours.

Helpful?5Y23GOOHD19F262598067
Mar 12, 2026
kristen
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

i always use these in my old used cars some mechanics say yes some say no i never used it on anything newer than 2013 so only are old cars and it works two pack great price.

Helpful?5Y23GOOHD19F262598067
Aug 5, 2025
Vadim
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Product discrepancy

It's a good product. However, product description says 1 bottle treats up to 21 gallons of gas, while what I have received (and what's available in stores) 1 bottle treats up to 15 gal of gas. Kinda mismatch...

Helpful?5Y23GOOHD19F262598067