AMSOIL PI

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TECHNICAL INFORMATION

AMSOIL P.i. has built a strong reputation among drivers who want more power, cleaner combustion, and better long-term fuel economy without tearing into the engine. This advanced performance improver works as a concentrated fuel-system cleaner designed to remove stubborn deposits that build up on injectors, intake valves, and combustion chambers. For drivers in colder northern climates, especially those who see frequent short trips, idling, and winter-blended fuels, AMSOIL P.i. becomes an even more valuable maintenance add-on because it restores efficiency that cold weather slowly robs from the engine. The formula is engineered to clean modern high-pressure fuel systems, including GDI setups known for carbon buildup, and it does so in a single tank of fuel, making it one of the most effective one-cycle cleaners available.

One of the biggest reasons enthusiasts and daily drivers reach for AMSOIL P.i. is the noticeable seat-of-the-pants improvement in throttle response. When injectors are dirty, the spray pattern becomes uneven, causing sluggish acceleration and inconsistent idle quality. After a treatment cycle, drivers typically notice quicker starts, smoother running, and stronger mid-range pull. This is especially important in colder regions where engines suffer from richer mixtures, longer warm-up times, and heavy combustion chamber deposits. By restoring normal spray patterns and breaking down carbon, P.i. helps the engine burn fuel more efficiently and reduces the wasted energy that leads to poor mileage and hesitation.

AMSOIL P.i. is also a strong value from an extended-maintenance standpoint. Instead of relying only on tear-down cleaning or expensive injector services, drivers can use P.i. every 4,000 miles to maintain clean internals. This keeps the entire fuel system running closer to factory condition and reduces long-term wear that forms when deposits trap heat. The chemistry behind P.i. targets the types of deposits formed by modern reformulated fuels and ethanol blends. With today’s fuels becoming more detergent-inconsistent depending on region and season, this supplement ensures a consistent level of cleaning performance no matter where the driver fills up.

Key benefits drivers appreciate most include:
• noticeable improvement in fuel economy after deposits are dissolved
• restored horsepower and better acceleration on vehicles suffering from injector restriction
• reduced knock and ping by removing combustion chamber hot spots
• improved cold-weather drivability, especially on high-mileage engines
• compatibility with GDI, multi-port, and turbocharged engines without risk to sensors or emissions equipment
• one-tank, high-concentration cleaning that makes the process simple and quick

For drivers who frequently tow, run fleet vehicles, or simply put a lot of miles on their engines, AMSOIL P.i. serves as a reliable way to maintain performance without an expensive service appointment. Hard-working trucks and SUVs in northern climates especially benefit because carbon buildup is accelerated by cold starts, stop-and-go operation, and heavy load cycles. By cleaning the injectors and valves, the engine maintains its designed atomization and combustion, which helps stabilize idle quality and reduce fuel usage over the long haul.

Using AMSOIL P.i. is straightforward: add one bottle to a full tank of gas and drive normally. The detergents immediately begin breaking down deposits, and the engine cleans itself as the treated fuel circulates. With regular use, the driver ends up with a smoother, more responsive engine, better mileage, and the confidence that the fuel system is protected from the hidden buildup that slowly erodes performance.

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TECHNICAL INFORMATION: AMSOIL PI

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FAQ: AMSOIL PI

QUESTION: What does AMSOIL P.i. do for a high-mileage engine?

AMSOIL P.i. is especially effective for high-mileage vehicles because older injectors and intake valves tend to collect heavy carbon and varnish. When those deposits thicken, the fuel spray pattern becomes uneven and the engine begins to lose power and mpg. P.i. restores that spray pattern by dissolving hardened deposits in one treatment cycle. Drivers typically notice smoother idle, stronger throttle response, and more consistent cold starts. For engines that struggle in winter climates, the cleaning effect also reduces knock and helps stabilize combustion during cold-weather enrichment.
• helps reduce rough idle and hesitation
• restores lost fuel economy by cleaning injectors
• breaks down stubborn deposits common on engines over 100,000 miles

QUESTION: How often should AMSOIL P.i. be used for best performance?

Most drivers benefit from using AMSOIL P.i. every 4,000 miles, or roughly every other oil change. This interval keeps injectors, valves, and combustion chambers free from the carbon that slowly forms from short trips, ethanol blends, and stop-and-go driving. In colder regions, where engines operate richer for longer warm-up periods, cleaning intervals can be even more important because carbon builds up faster. Regular use prevents the performance drop many drivers notice over time.
• simple one-tank treatment makes consistent maintenance easy
• prevents the need for expensive injector cleaning services
• keeps modern GDI engines from developing the heavy valve deposits they’re known for

QUESTION: Can AMSOIL P.i. improve fuel mileage on a vehicle that already runs well?

Even well-maintained engines accumulate micro-deposits that affect combustion efficiency. AMSOIL P.i. targets those fine layers that restrict injector flow and reduce atomization quality. After cleaning, the engine burns fuel more completely, which typically results in slightly better mileage and a more responsive feel. Drivers who operate in colder climates or make frequent short trips often notice a bigger improvement because their engines accumulate deposits more quickly.
• cleans areas detergents in pump gas often miss
• restores combustion efficiency for better mpg
• enhances throttle response without altering tuning or hardware

QUESTION: Is AMSOIL P.i. safe for turbocharged and GDI engines?

AMSOIL P.i. is formulated specifically for modern engines, including turbocharged and gasoline direct-injection setups that are more prone to carbon buildup. The detergents are designed to be oxygen-sensor safe and do not harm catalytic converters, even under high-heat conditions. For GDI engines, where intake valve deposits form rapidly, P.i. helps slow the accumulation and clean the fuel side of the system for better spray consistency. Turbo vehicles especially benefit because clean injectors reduce knock and allow the engine to maintain proper timing under boost.
• safe for emissions systems and high-pressure fuel systems
• reduces knock and hot spots in boosted engines
• helps maintain long-term performance on engines sensitive to carbon buildup

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