How much should I pour in the tank for a first use?

If tank is empty, add quarter of it to tank. Drive then fill up at pump. Or you can add more if you wish, but watch out if adding too much. I had my car misfire once because I added all of contents. And it was a 5.0 m5, this stuff can be tough for the fuel pump

Is this for Diesel engines?

I have used LUCAS UPPER CYLINDER LUBRICANT since 2005 on last 3 diesel cars and have found it invaluable in fuel economy,power and cleanliness of emissions.My cars have been over 8yrs old and would recommend it to all...My local taxi drivers swear by it...

Does this treatment protect your vehicle from the effects of E10 (10%) ethanol fuel?

Would surmise, as a fuel "Cleaner" it would do the same on E10 as with other petrol fuels E5 etc. Although NOT 100% sure ( question the actual manufactures by email ), it would not deter myself from continuing to use it. Sorry, a bit ambiguous, or try a local chemisrty lab. hope this is Some help. Loopy75.

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40003 Fuel Treatment - 1 Litre, Tan

Product ID: 49425115

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Details

Brand
Lucas Oil
Vehicle service type
Car Truck
UPC
049807400033
Automotive Fit Type
Universal Fit
Global Trade Identification Number

⛽Neutralizes low sulfur fuel issues

📈Boosts fuel efficiency & MPG

⚙️Cleans & lubricates fuel system

Description

⛽ Fuel smarter, drive farther — don’t let your engine miss out!

MAXIMIZE YOUR MPG - Optimizes fuel combustion for noticeable improvements in mileage—drive smarter, not harder.
TRUSTED QUALITY FROM LUCAS OIL - Backed by a leading brand in automotive care, ensuring reliability and superior results.
COMBAT LOW SULFUR FUEL PROBLEMS - Effectively neutralizes corrosive effects of low sulfur fuels, protecting vital components.
ENGINEERED FOR PEAK PERFORMANCE - Deep cleans and lubricates your entire fuel system to keep your engine running smoother, longer.
EXTEND PUMP INJECTOR LIFESPAN - Lubricates critical parts to reduce wear and costly repairs, saving you money over time.

Lucas Oil 40003 Fuel Treatment (1 Litre) is a premium additive designed to clean and lubricate your vehicle’s fuel system, neutralize issues caused by low sulfur fuels, and extend the life of pumps and injectors. Its advanced formula enhances fuel efficiency, helping you get more miles per gallon while protecting critical engine components.

Specifications

Manufacturer	Lucas Oil Products Inc
Brand	Lucas Oil
Model	40001
Product Dimensions	8.38 x 8.38 x 8.38 cm; 898 g
Item model number	LUC10003
Exterior	Painted
Manufacturer part number	10003
OEM Part Number	10003
Item Weight	898 g

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