Will gas mileage increase

I drive (and now use this in) a 1996 Toyota 4Runner. Prior to its use I'd averaged 17mpg, then performed a replacement on plugs, wires, and air filter (upgrading to a K&N); in addition to cleaning the MAF and throttle body (all on my own, mind you!). I now average anywhere between 19.5 (city) and just under 25 (highway). I'm not sure just how much of a fuel increase can be contributed to this product, but I no longer go without it!

Would keeping this in the car in hot Texas heat be an issue?

OF COARCE ITS A DANGEROUS ISSUE !! Storing any flamable liquid in a car is very dangerouse , especially a hot car !! you put yourself at risk of combustion from the heat & also combustion if you get in a accident !! buy a tiny bottle of lucas fuel additive , its about 5.5 oz.s !! fill that up and insulate it in trunk to keep it cool . then when you fill up ? you will have a bottle ready to put in your tank !! instead of hauling around a gallon of the stuff .

Whats difference between this and the fuel treatment 5 oz

Their is no difference other than the packaging

Will it help remove P0420 code?

2 bottles of Lucas oil, one gas refill apart, helped with my P0420 Code on Infiniti QX60 engine light. With the 2nd bottle, the light was gone. It worked like a charm. I will continue to keep the fuel tank clean moving forward. Tip : don't wait for the fuel tank to be completely empty before you refill.

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Lucas Oil 10003 Upper Cylinder Lubrication & Injector Cleaner (32oz)

Lucas Oil 10003 Upper Cylinder Lubrication & Injector Cleaner (32oz)

Product ID: 257475535

Details

Brand
Lucas Oil
Item weight
898 Grams
Liquid volume
1 Quarts
Package information
Bottle
Recommended uses for product
Automotive and

⛽Injector Cleaning Power

⚙️Upper Cylinder Lubrication Boost

🛢️32oz Long-Lasting Capacity

₨664

Duties & taxes included

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Details

Brand
Lucas Oil
Item weight
898 Grams
Liquid volume
1 Quarts

Description

🚗 Power up your drive and leave the competition behind!

EASY MAINTENANCE ROUTINE - Add every 3,000 miles to keep your engine running like new.
RUST CORROSION DEFENSE - Shield your engine components and extend vehicle lifespan.
ECO FRIENDLY EMISSION REDUCTION - Pass smog tests effortlessly while lowering harmful exhaust.
ADVANCED INJECTOR CLEANING FORMULA - Eliminate carbon buildup for peak fuel system performance.
MAXIMIZE ENGINE POWER FUEL EFFICIENCY - Unlock smoother rides and save at the pump with every tank.

Lucas Oil 10003 is a premium 32oz upper cylinder lubricant and injector cleaner designed to enhance engine power, improve fuel mileage, and reduce emissions. Its advanced formula cleans fuel injectors, prevents carbon buildup, and protects against rust and corrosion, making it an essential maintenance product for any car owner aiming for optimal performance and longevity.

Specifications

Asin	B000ARPVOI
Automotive Fit Type	Universal Fit
Best Sellers Rank	#4,263 in Automotive (See Top 100 in Automotive) #37 in Oil & Fluid Additives
Brand Name	Lucas Oil
Compatible With Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (7,173) 4.7 out of 5 stars
Global Trade Identification Number	00049807100032
Item Weight	898 Grams
Liquid Volume	1 Quarts
Manufacturer	Lucas Oil
Manufacturer Part Number	10003
Model Number	LUC10003
Number Of Packs	1
Sae J300 Viscosity Grade	0W
Size	32 Ounces
Unit Count	32 Milliliters
Upc	049807800031 049807400033 049807100032

Reviews

User

ممتاز

14.12.2023

User

Genuine

Genuine product & the best

2.11.2023

User

GOOD PRODUCT

Delivery so fast. Thanks

7.09.2023

User

Didn’t work, couldn’t feel any difference

22.04.2025

User

buen producto

buen producto, lo utilizo varias veces al año y se nota en el rendimiento del motor, vendedor de 10, envio rapido

28.03.2024

User

Ottimo addittivo

Indispensabile per auto Kg metrate, ne basta poco in un pieno

31.03.2026

User

Nice

It improves well, always trust lucas products 👏

15.06.2021

User

tut was verspricht

binn überzeugt des es wirkt motor zieht besser und lauft wieder vernuftig

26.06.2020

User

Excelente, mantiene muy limpio el sistema

Muy bien

30.07.2026

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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₨664

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

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