Hi, I know this has been asked already but is this safe to use on a motorbike?

Hi yes. I use it on my old Norton. Works wonders but don't use the whole bottle

Will this restore old petroleum in my boat fuel tank

Don't know about boat, but my husband said it was great in the car. Hope this helps a bit

Can I use both the 5 in 1 cleaner and injection cleaner in one full tank?

You could but I wouldn't. Both products have properties that help clean various parts from the Fuel Tank to the Combustion chamber. In fact the description of both products show 1-2 identical properties. Just use one and then the other after doing a the guide line of 3-4 thousand miles.

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STP Diesel Complete Fuel System Cleaner 400 ml

Product ID: 51559784

Details

Brand
STP
Item form
Liquid
Item volume
400
Material Type Free
Material feature
concentrated
Scent
Unscented

⛽Cleans entire fuel system in one tank

⚙️Removes deposits from injectors & valves

🛡️Prevents corrosion & filter blocking

€ 26.53

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Drive cleaner, drive smarter — fuel your engine’s comeback!

CORROSION DEFENSE - Protects vital engine parts from rust and filter clogging, extending engine life
EASY ONE TANK TREATMENT - Just add to a full tank and experience noticeable improvements without hassle
FUEL EFFICIENCY BOOSTER - Optimizes fuel combustion to save money at the pump and reduce emissions
COMPLETE FUEL SYSTEM DETOX - Flushes injectors, valves, and combustion chambers for peak engine health
POWER PERFORMANCE REVIVAL - Eliminates hesitation and power loss to keep your drive smooth and confident

STP Diesel Complete Fuel System Cleaner (400 ml) is a concentrated liquid formula designed to clean the entire diesel fuel system in one tank. It removes harmful deposits from injectors, valves, and combustion chambers, preventing hesitation, power loss, corrosion, and filter blockages. Recommended every 4000 miles, it enhances fuel efficiency and engine performance, making it a must-have for maintaining diesel engines.

Specifications

ASIN	B00A0JJI4K
Best Sellers Rank	66,725 in Automotive ( See Top 100 in Automotive ) 329 in Fuel Systems
Brand Name	STP
Contains Liquid Contents?	Yes
Customer Reviews	4.5 4.5 out of 5 stars (153)
Global Trade Identification Number	05020144800873
Included Components	1 bottle
Item Form	Liquid
Item Type Name	Car System Cleaner
Item Volume	400 Millilitres
Item Weight	380 Grams
Manufacturer	Armored Auto Group Sales Inc.
Material Features	concentrated cleaning power
Material Type Free	No_Material_Type_Free
Model Number	GST65400EN
Number of Items	1
Part Number	GST65400EN
Scent	Unscented
Size	400 ml (Pack of 1)
Special Features	diesel fuel system cleaner
Specific Uses For Product	Engine
Surface Recommendation	Metal
Unit Count	400.0 millilitre

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