

🚀 Unlock peak engine performance & eco-friendly rides with Lucas 10003!
Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner (32 oz) is a premium USA-made fuel additive designed to protect engine components, improve fuel economy by up to 6.5%, reduce emissions drastically, and enhance acceleration while lowering engine noise and vibrations. Trusted by thousands with a 4.7-star rating, it’s the go-to solution for millennial professionals seeking longevity and efficiency in their vehicles.

| ASIN | B000ARPVOI |
| Assembly Required | No |
| Best Sellers Rank | #94,852 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #377 in Engine Oils for Cars |
| Brand | Lucas Oil |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (6,570) |
| Date First Available | 7 August 2012 |
| Item Dimensions LxWxH | 8.4 x 8.4 x 8.4 Centimeters |
| Item Weight | 898 g |
| Item model number | LUC10003 |
| Manufacturer Part Number | 10003 |
| OEM Part Number | 10003 |
| Product Dimensions | 8.38 x 8.38 x 8.38 cm; 898 g |
| Volume | 32 Decilitres |
A**E
Quite Impressive!
The purpose of using this product for me was SOLELY to preserve and increase engine life. However, I was pleasantly surprised with the results! Research shows that the highest amount of wear in a petrol engine occurs at the uppermost parts of the cylinder and piston, during cold starts. The product was used on my 2014 Royal Enfield Continental GT 535, in Kolkata, starting in the last week of Feb, '23. The bike now has just under 29000 Kms on the odometer. I mix 2 ml of Lucas/litre of regular petrol (using a syringe) Benefit #1 - Fuel Economy Increase (city-riding only, no highway) AFTER using Lucas - 29.13 Kms/l (403.7 Kms for 13.86 litres of petrol - just over one, full tank) Before using Lucas - 27.34 Kms/l (388.2 Kms for 14.2 litres of petrol - just over one, full tank) Benefit #2 - Emissions' Decrease (Bike ridden for about 20 mins before each test) AFTER using Lucas: CO - 0.18; HC - 11 (lowest values EVER, test date - 24.05.2023) Before using Lucas: CO - 0.56; HC - 28 (test date - 25.11.2022) Benefit #3 - Reduced Vibrations and Engine-Sound Volume Engine sounds a little quieter. Vibes have reduced by, maybe, 10%. I should have objectively measured this using a mobile-phone app, but forgot to do so before using the product. Hence, no point doing an 'after' either. Benefit #4 - Increased Acceleration The bike feels like it pulls, maybe, 5-6% harder than before. Again, no objective measurement. Highly recommended to those who want to make their vehicles last longer than average!
N**L
Awesome results.
Unexpected results with this product. I used in 3 cars & performance of car after using this liquid is awesome. Wordless. I mean car's milage increased 4-5 kms p/l. Pickup increased 20%. Engine noise reduced 25%. Awesome results. I am going to purchase big packing 4 liters. Thanks Lucas.
R**N
A must for fuel injectors
Received as ordered. This serves my both petrol & diesel cars effectively. The consistency of the liquid is thicker & much different from the additives with almost kerosene like liquid. Lucas knows this technology well
M**A
Good to buy if you get it at good price.
Working good, engine sound reduced by 30%. Milage increased by 2kmpl.
C**N
buen producto, lo utilizo varias veces al año y se nota en el rendimiento del motor, vendedor de 10, envio rapido
M**R
It improves well, always trust lucas products 👏
S**N
binn überzeugt des es wirkt motor zieht besser und lauft wieder vernuftig
G**W
A good UCL for both petrol and diesel.
P**Z
I do quite a lot of stop start driving, the engine rarely gets a proper blow out, plus I use supermarket fuels which tend to be cheaper but have less additives than brands. This additive compensates for the ‘negative’ factors and is resulting in mpg figures of around 7% better than officially published, which is amazing. I think it works.
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