Fluid Services

Changing your car’s oil is one of the most simple and cost effective maintenance procedures you can do. At Great Canadian Oil Change we have made a commitment to our environment. Used oil and filters are sent out for recycling: used oil is recycled into industrial grease and the steel from the filters are reprocessed as well.

There are varying recommendations as to how often you should change your oil. The reason for the variation is the way you use your car…light, heavy, or severe service. What most of us think of as “normal” service is actually “severe”. Severe service includes frequent short trips (less than 20 km), stop-and-go traffic, driving on gravel roads, and driving at sustained high speeds in hot weather. For this type of driving, the accepted industry wide recommendation is 5000 km. Changing your oil regularly, under these conditions, will increase the life span of your engine.

Oil Change

Engine – Regular oil changes should be made at 5,000 km or 3 months intervals, (whichever comes first). Our house oil, “Petro Canada Maximum” is a superior product. The oil is Hydro-Treated to form a “99% pure base stock.” Not many other oils can boast that! For a very low price, you may upgrade from 5W20 to 20W50 oil.

Semi-Synthetic: Get the benefits of synthetic oil at a low price. …Semi-synthetic oil is available from Petro Canada and most major brands (great for cold starts!).

Full Synthetic: Full synthetic oils offer the best protection against engine wear, the best protection against cold temperature start-ups and the best protection for high revving, high temperature engines; simply the best available from Petro Canada and most major brands.

Other Brands: Have a favourite? We carry all major brands of top quality oil, including Castrol, Pennzoil, Quaker State, Valvoline and many, many more.

Oil Filters: We use Valvoline Premium Filters. They are recognized as an industry standard and are warranty approved for your car.

Engine Flush: Been a while since your last oil charge? Get rid of sludge & grime in your engine, in one quick step! Using a safe, specialty oil, we empty your crankcase, replace with the “Oil Flush”, let your car idle for 10 minutes to clean out every corner of your engine, drain the flush and replace again with your selection of our premium oils.

Fuel System Cleaning Service

Fuel Injection Service – We clean the fuel injectors, catalytic converter, the air intake and emission systems. This service helps to eliminate rough idling, hesitation and sluggishness and can restore performance. Service is recommended every 24,000 km or every year for most vehicles.

Fuel Filters: The fuel filter is a small device that removes impurities, such as dirt and rust from the fuel before it can contaminate the rest of the fuel system. Replacing the filter once a year will help reduce the possibility of damage to your fuel system.

Radiator Fluid Change

Radiator Coolant: Your coolant contains a chemical (ethylene glycol) that stops water from freezing or boiling in regular and extreme temperatures. Coolant also contains rust, corrosion and foaming inhibitors. Over time these inhibitors become less effective, leaving you with breakdowns and costly damages.

Radiator Flush: We remove all of the old coolant in the radiator, the engine, the hoses and the heater core and replace it with warranty approved fluid (up to 15 L.). We also check for leaks in the system and test the radiator cap. Replacing the fluid helps protect against rust and corrosion, engine freeze up and helps your vehicle operate at its most efficient temperature. Service is recommended every 48,000 km or every 2 years for most vehicles Check your owner’s manual.

Fluid Identification

Following are some helpful hints as to the type of fluids used in today’s vehicles, as well as various colors and other characteristics to help you identify your vehicles fluids.

There are a number of fluids that can leak from your vehicle, with many of them leading to a possible breakdown and expensive repair if neglected. Some leaks are obvious, where others may play “hide and seek” with you. If you can’t find the location of the leak, place fresh newspapers under where you think your leak is overnight and then check them in the morning.

Engine Oil

Engine oil is typically dark-brown or black in color. At times, you might see a few drops here and there and this might be all right if you recently have had your oil and oil filter changed or performed this service yourself. This can largely be attributed to the location of the oil filter on the engine and some oil may have dripped upon some of the vehicle chassis or a small amount was spilled onto the engine when dispensing the new oil into the filler area. While a few drops shortly after an oil change might be ok, you want to make sure that “puddles” of oil do not occur.

Antifreeze / Coolant

Engine antifreeze / coolant can be either green, yellow or red depending on the type used by the vehicle manufacturer. Most vehicles have a radiator located just behind the grill. This fluid has a sweet smell to it (like maple syrup). Not enough antifreeze / coolant will cause the engine to overheat. There is usually an “overflow” or “fill” tank where you can add antifreeze / coolant to your cooling system.

Clear Water

If the fluid looks like clear water, than it probably is. Since most vehicles today are equipped with air conditioning, you’ll likely notice drips or puddles coming from underneath the engine compartment. This is ok, since this water is condensation from the a/c system. This is the best fluid to see under your vehicle.

Brake Fluid

Brake fluid is generally clear and oily to the touch. When you depress the brake pedal, brake lines allow the brake fluid to be pushed through to each of the 4 wheels containing a “stopping device”, either a brake caliper or a wheel cylinder. So any number of leaks could appear almost anywhere a weakness may exist in the system. While leakage of the brake system is rare, you’ll likely feel a “soft or spongy” brake pedal feel when depressing the brakes, which can lead to brake failure if not corrected immediately.

Transmission Fluid

Transmission fluid (TF) is typically red, although the color can be a “milky pink” color if it becomes contaminated. Some TF for certain vehicles may be clear or amber in color. If you have a front-wheel-drive vehicle, then your transmission is next to the side of your engine underneath the hood. If you have a rear-wheel-drive vehicle, then your transmission is located in the center of your vehicle just under the dash under that “hump” in the center. If the color of your TF appears to be brown then this would indicate that the fluid has overheated and should be changed as soon as possible.

Power Steering Fluid

Power steering fluid is generally red, although some vehicle manufacturers may use a fluid that is almost clear or amber. The power steering reservoir is typically mounted with the power steering pump driven by a belt on the engine. Leaks generally occur within the power steering lines.

Windshield Washer Fluid

Pink or blue fluid would indicate that your windshield washer reservoir is leaking. For the front windshield, this reservoir is under the hood in the engine compartment. For vehicles with rear wipers, it is usually mounted behind a panel in the rear left or right side of SUV’s and vans.


Gasoline is a clear fluid with a strong smell and is obviously highly flammable. Gasoline is stored in the gas tank which is usually located at the rear of your vehicle. Leaks can occur if you bottom out your vehicle, causing damage to the gas tank. There are also fuel lines that run underneath the vehicle up to the engine. Leaks can also occur within the fuel line (rare), but are most likely to occur at a connection point. Gasoline leaks should be repaired immediately due to a fire hazard.

Diesel Fuel

Diesel fuel looks like light oil. While not as flammable as gasoline, it can ignite in the right conditions. Leaks should be taken care of as soon as possible.

Gear Oil

Gear oil is a light tan or black color and is considered a “heavy” or “thick” oil. Leaks can occur in your manual transmission, differential (rear-end on rear-wheel-drive vehicles) or axle. Since gear oil is used widely among certain components, a gear oil leak may be present at a number of locations underneath a vehicle. Any leaks should be repaired as soon as possible.

Battery Acid

Battery acid is a clear fluid that contains sulfuric acid and will smell like rotten eggs. A leak would typically indicate that your battery casing is cracked and the battery should be replaced immediately. Since battery acid is corrosive, any contact with skin should be washed and flushed with water as soon as possible.

Shock and Strut Fluid

Shock and strut fluid is typically dark brown. Shocks and struts can “ooze” their fluid and this will be evident by a stain on the outside of the shock or strut housing. There is no refilling of this fluid so they must be replaced (usually in pairs or all four at the same time).