Compression test after was 100psi, 105psi, 105 psi, 100 psi. And the idle was drastically improved. The treatment and clearly cleaned the valves and the crowns of the piston(s) levelling out the compressions to somewhere more reasonable. The owner of the car returned to the garage the following day commenting how it was like a different car to drive. And, the best part is that it’ll even destroy the existing buildup of gum. Honestly, I have already given the scientific explanation behind the fuel cleaner. It’s on the stp ultra 5 in 1 fuel system cleaner review, so I won’t get into the nitty-gritty in this one.

Injectors are designed to deliver a precisely measured mist of fuel into the combustion chamber, but a dirty injector will disrupt this fine pattern into a coarse, intermittent stream, and can even restrict the flow of fuel to the engine. A. Our advice would be to use a fuel injector cleaner on every tankful. If you strictly use premium fuel at every fill-up, you can probably reduce this to every second or third tankful. Standard fuel has a much lower cetane than that of it’s premium counterpart and has been known to create oily deposits within the fuel system so we would definitely advise using a fuel injector cleaner at every fill-up if you often use standard fuel. Diesel fuels may form waxes or be contaminated with water that can plug the fuel filter. These conditions may result in poor starting, rough idling, poor combustion, hesitation or power loss under acceleration, stalling, loss of fuel economy and increased emissions.One of the unique features of stp ultra 5 in 1 is its versatility. It can work in any modern gasoline engine such as turbo, direct-inject, hybrid vehicles, etc. Yes! If you want to improve the performance of your car or even your lawnmower, this one product is all you need. This STP Diesel Engine Oil Treatment is specially formulated to clean, protect and look after the key parts of your engine that are susceptible to these deposit build-ups created by start-stop engines. Fuel System Issues: If you’re experiencing symptoms like rough idling, poor fuel efficiency, excessive smoke, or reduced power, it may indicate issues with the fuel system, such as clogged injectors or a dirty fuel filter. In such cases, a diesel engine cleaner can help clean the injectors.

But, here’s where the magic happens! The cleaning agents of the product help to keep the fuel system clean by preventing further gum formation. Now, PEA is a very common ingredient that many products contain. It is basically a fuel system cleaner. And, it’ll clean the carbon from various engine parts, such as pistons, valves, fuel lines, etc. Now that you have read all the pros and cons of using stp ultra 5 in 1, I would like to share some key features of the product with you. So that, before buying the product, you are able to compare it yourself. Strong Stability Game: A normal car that does not have automatic start-stop can be anticipated to go through around 50,000 start-stop events during the car’s life; however, with the start-stop being activated every time your car comes to a halt, this figure rises significantly. STP Diesel Oil Treatment uses anti-wear technology to keep your engine running better for longer, and ensures your car retains performance levels all year round.

STP Ultra 5-in-1 Diesel System Cleaner 400ml

Liqui Moly have rapidly become a go-to brand for a magnitude of car care conundrums. The German powerhouse specialise in fuel system and injection cleaning products which do exactly what. they say on the tin. Their injection cleaner removes deposits on injection valves, intake valves, spark plugs and in the combustion chamber and prevents them from reforming. The up shot of this is that starting problems are eliminated and also rough engine running symptoms too. It’s extremely economical too, one 300ml can is suitable for treating up to 70 litres of fuel, impressive stuff. This particular injector cleaner is only suitable for petrol engines. Here, the gum will then end up clogging the engine. And, the stray moisture creates buildup and corrosion. That isn’t a pleasant thing for your engine, is it? To rate the fuel injector cleaners, not only did we test several formulas (as shown in the image above), but we also based our recommendations on the latest research and a number of factors. Some of the factors that we considered included the additive’s cleaning abilities, brand reputability, treatment duration and value for the money. Best Fuel Injector Cleaner Overview