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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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

⛽Boosts fuel mileage by optimizing combustion

♻️Lowers exhaust emissions for cleaner performance

🛡️Protects engine from rust & corrosion

€ 53.72

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

⛽ Drive smarter, cleaner, and stronger with Lucas Oil’s ultimate fuel system booster!

ENGINE ARMOR - Advanced additives shield your fuel system from damaging rust and corrosion
CLEAN GREEN - Promotes complete combustion to reduce harmful emissions and pass smog tests effortlessly
COMPACT POWERHOUSE - 32oz sleek bottle fits easily in your garage or glovebox for on-the-go maintenance
MAXIMIZE EVERY MILE - Add every 3,000 miles to maintain peak fuel efficiency and power
TRUSTED BY THOUSANDS - Rated 4.7 stars by nearly 7,000 users who demand reliable engine performance

Lucas Oil 10003 Upper Cylinder Lubrication & Injector Cleaner is a 32oz premium fuel additive designed to enhance engine power, improve fuel economy, and reduce emissions. Its powerful blend of oils and additives cleans fuel injectors, prevents carbon buildup, and protects against rust and corrosion. Suitable for cars and trucks, it’s recommended for use every 3,000 miles to maintain optimal engine performance and pass smog tests with ease.

Specifications

ASIN	B000ARPVOI
Best Sellers Rank	#1,355 in Automotive ( See Top 100 in Automotive ) #26 in Oil & Fluid Additives
Brand	Lucas Oil
Brand Name	Lucas Oil
Compatible with Vehicle Type	Car, Truck
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 6,986 Reviews
Global Trade Identification Number	00049807100032
Item Weight	898 Grams
Liquid Volume	1 Quarts
Liquid volume	1 Quarts
Manufacturer	Lucas Oil
Manufacturer Part Number	10003
Model Number	LUC10003
Package information	Bottle
SAE J300 Viscosity Grade	0W
Size	32 Ounces
UPC	049807800031 049807400033 049807100032
Unit Count	32 Milliliters
Vehicle service type	Car, Truck

Reviews

T**D

متعادل

لاحظت عند استعماله فعلا انخفاض صرف البترول ولكن بعد ان ينتهى المحتوى من الخزان يرجع التحسن الى الاستهلاك مثل الاول مع فرق بسيط لا يذكر

1.09.2024

M**3

ممتاز

14.12.2023

A**I

Genuine

Genuine product & the best

2.11.2023

S**N

GOOD PRODUCT

Delivery so fast. Thanks

7.09.2023

S**.

Didn’t work, couldn’t feel any difference

22.04.2025

C**N

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

V**A

Ottimo addittivo

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

31.03.2026

M**R

Nice

It improves well, always trust lucas products 👏

15.06.2021

S**N

tut was verspricht

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

26.06.2020

B**Z

Excelente producto

Es un producto muy bueno para evitar residuos en los inyectores mi auto lo acepto muy bien, dejo de patear a la hora de acelerar. Ya no se sienten jalones cuando pisas el acelerador.

10.04.2024

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Abdullah B.

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

3 weeks ago

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€ 53.72

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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