Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz

Q: 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!

Q: 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 .

Q: Whats difference between this and the fuel treatment 5 oz

Their is no difference other than the packaging

Q: 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.

4.7/5

Product ID: 217258096

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Details

Brand
Lucas Oil
Vehicle Service Type
Car Truck
UPC
049807100032
Automotive Fit Type
Universal Fit
Global Trade Identification Number

🔥Dual-action upper cylinder & injector cleaner

⚙️Universal fit for all engines

🛢️32 oz powerhouse capacity

Frequently Bought Together

Lucas Oil 10003 Fuel Treatment - 1 Quart

Lucas Oil 10130 Pure Synthetic Oil Stabilizer - 1 Quart

Lucas Oil 10512 Deep Clean Fuel System Cleaner - 16 Ounce

Description

🛠️ Unlock peak engine power with Lucas — because your ride deserves the best!

MADE IN THE USA - Premium quality you can trust, crafted with precision and care.
NO ASSEMBLY NEEDED - Ready to use straight out of the bottle—convenience meets power.
DUAL ACTION FORMULA - Cleans injectors and lubricates upper cylinders for smoother starts and reduced wear.
UNIVERSAL COMPATIBILITY - Perfect for cars, trucks, and motorcycles—one solution for all your rides.
MAXIMIZE ENGINE EFFICIENCY - Boost performance and fuel economy with every use.

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner is a 32 oz premium automotive fluid designed to clean fuel injectors and lubricate upper cylinders. Compatible universally with cars, trucks, and motorcycles, this dual-action formula enhances engine performance, reduces wear, and improves fuel efficiency. Made in the USA and ready to use without assembly, it’s the go-to maintenance essential for professional-grade engine care.

Specifications

Brand	Lucas Oil
Vehicle Service Type	Car, Truck, Motorcycle
UPC	049807100032
Automotive Fit Type	Universal Fit
Global Trade Identification Number	00049807100032
OEM Part Number	10003
Product Dimensions	8.38 x 8.38 x 8.38 cm; 898 g
Item model number	LUC10003
Manufacturer Part Number	40003
Volume	32 Decilitres
Assembly Required	No
Country of Origin	USA
Item Weight	898 g

Have a Question? See What Others Asked

Will gas mileage increase

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

Whats difference between this and the fuel treatment 5 oz

Will it help remove P0420 code?

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