EXPRESS AutoCare Laval

Engine Internal Service

Engine oil change, Express AutoCare Laval

LIQUI MOLY Workshop Services

EXPRESS AutoCare is proud to announce its new LIQUI MOLY oil and fluid change service. Industry-leading quality made in Germany with Germany's most popular lubricant brand.

Internal Engine Services – Essential Guide

Internal engine service is a crucial part of automotive maintenance. It aims to preserve the performance, longevity, and efficiency of the engine by cleaning, protecting, and optimizing all its internal components. Unlike external maintenance (such as oil changes or filter replacements), this one works at the very heart of the engine, where combustion, lubrication, and compression occur.

Why is this maintenance essential?
Even with regular oil changes, impurities naturally form in the engine. Without internal cleaning, they can lead to:
  • Loss of power and less responsive acceleration.
  • Excessive fuel consumption.
  • Rough idling or difficult starting.
  • Higher pollutant emissions.
  • Premature wear of internal parts.

Internal maintenance is therefore a key step in preserving the health of the engine and extending its lifespan.

What our complete service includes. Our qualified technicians use professional products and specialized equipment to perform a thorough cleaning:

1. Internal Cleaning Additive
A highly effective cleaner is added to the engine oil to dissolve sludge, deposits, and residue, which are then flushed out during the oil change.
2. Intake System and Valve Cleaning
We remove carbon deposits that impair combustion, improving engine compression, power, and efficiency.
3. Injection system treatment (if necessary)
Targeted injector cleaning restores precise fuel atomization, for improved performance and reduced fuel consumption.

Benefits for your vehicle. After an internal engine service, you'll quickly notice the difference:
  • More powerful, quieter, and smoother engine.
  • Better fuel economy.
  • Reduced pollutant emissions.
  • Higher pollutant emissions.
  • Longer engine life and fewer costly repairs.

SERVICE TIPS:
Most manufacturers recommend internal engine maintenance every 60,000 to 100,000 km, or sooner if you notice:

At EXPRESS AutoCare, we use professional techniques and products to safely clean your engine from the inside out, without disassembly. It's a smart investment to preserve your vehicle's performance and value.

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This Service Included

1

Controls

Exterior lighting, belts, radiator, hoses, battery (cables and fasteners), windshield wiper blades, check and correct tire inflation pressure, top up fluids if necessary.

2

Oil & Filter

Oil change and filter replacement with a quality part approved by the manufacturer.

3

Air Filter

Removal and inspection of air filter element, replacing it as necessary.

4

Resetting

Resetting On-Board computer or affixing next service label.

Expert Advice

  • Additional Requirements

    If you often operate your vehicle under one or more of the following conditions, please refer to the additional maintenance requirements below:


    1. Short trips of less than 5 km. or less than 8 km. when the temperature is below zero degrees celsius.

    2. Towing or driving in the mountains.

    3. Driving on dusty or muddy roads.


    - Replace the manual transmission, transfer case and differential oil every 24 months or 36,000km.


    - Replace the rear differential oil every 10,000km. (for trailer applications only).

  • Off-Road Driving

    If you operate a four-wheel drive vehicle, and have driven in deep sand, mud or water, you should immediately perform the additional maintenance services listed above.


    It is also necessary to replace the engine oil and filter as well as the transmission, transfer case and differential oil, in addition to adding grease.


    The air filter is the lungs of the car. It helps retain dust contained in the air. Its clogging will have an impact on the quality of air necessary for the combustion of fuel in the engine.


    Undercarrager washing, the importance of undercarrager washing of your vehicle with a high-pressure jet to remove salt, sludge, leaves and stones.

  • High Mileage Car

    Maintenance of older, high mileage vehicles.

    - Today's vehicles are generally capable of traveling more miles than previous generation cars and trucks, but the secret to true longevity remains the same: regular maintenance.


    - Make sure also make adjustments at the intervals recommended by the manufacturer. But above all, your high mileage engine needs regular oil changes.


    - As vehicles and their engines age, their moving parts can wear out and potentially need better lubricating protection.


    - And while your high-mileage engine will tolerate normal motor oil, it will perform better if you use an oil specifically formulated for high-mileage engines.