Oil Change

 

Engine oil is one of the most important fluids in your vehicle. It lubricates internal engine components, helps control heat, reduces friction, and carries contaminants away from critical moving parts.

At Precision Automotive & Transmission, we believe customers should understand their vehicles—not simply be handed a repair estimate. That’s why our motto is “The best decisions are informed decisions.” When we perform an oil change, we want you to know what oil your engine requires, why that specification matters, and what else we are checking while your vehicle is in the shop.

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What Does Engine Oil Do?

 

Engine oil creates a protective film between moving components inside the engine.

 

It helps protect parts such as:

• Crankshaft bearings

• Camshafts

• Pistons and cylinder walls

• Timing components

• Valve-train components

• Turbocharger bearings on equipped vehicles
   

Oil also helps carry heat and contaminants away from these components so they can continue operating properly.

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Why Oil Changes Matter

 

Engine oil breaks down over time from heat, combustion byproducts, moisture, and normal engine operation.

As oil ages, it can become contaminated and lose some of its ability to lubricate and protect internal components.

Neglected oil changes can contribute to:

• Sludge buildup

• Increased engine wear

• Poor lubrication

• Restricted oil passages

• Timing-system problems

• Reduced engine life

• Turbocharger damage

• Low oil pressure concerns
   

Regular oil service is one of the simplest ways to protect the engine.

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Using the Correct Oil Specification

Not every engine uses the same oil.

Modern vehicles may require specific:

• Oil viscosity

• Additive packages

• Manufacturer approvals

• Synthetic oil

• Diesel-rated oil

• Low-ash oil

• Turbocharged-engine specifications
   

Using the wrong oil can affect lubrication, emissions systems, variable valve timing, fuel economy, and engine durability.

We use the oil specification recommended for the vehicle rather than simply choosing oil based on price or habit.

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Oil Viscosity

Viscosity describes how easily oil flows at different temperatures.

Common examples include:

• 0W-20

• 5W-20

• 5W-30

• 10W-30
   

The correct viscosity helps the engine receive proper lubrication during cold starts while still maintaining protection at operating temperature.

The manufacturer selects the viscosity based on engine clearances, oil-pressure requirements, temperature range, and overall engine design.
 

Engine Oil Filter Replacement

The oil filter removes contaminants from the oil as it circulates through the engine.

Over time, the filter traps:

• Dirt

• Carbon

• Metal particles

• Sludge

• Other contaminants
   

Replacing the filter with the oil helps keep contaminated material from circulating back through the engine.

A quality filter is important because poor filtration or restricted flow can affect oil-system performance.
 

Checking the Oil Level

Correct oil level is just as important as oil quality.

Too little oil can cause:

• Low oil pressure

• Increased engine wear

• Overheating of internal components

• Bearing damage

• Timing-system damage
   

Too much oil can also create problems, including aeration and excessive crankcase pressure in some applications.

After service, the oil level should be verified according to the correct procedure for the vehicle.
 

Oil Leaks

An oil change is also a good opportunity to look for visible leaks.

Common leak locations may include:

• Valve covers

• Oil pan

• Drain plug

• Oil filter housing

• Timing cover

• Crankshaft seals

• Camshaft seals

• Oil cooler assemblies
   

If we notice an active leak, we can explain where it appears to be coming from and whether it needs immediate attention.
 

Oil Consumption

Some engines consume oil between services.

Possible causes include:

• Worn piston rings

• Valve-seal wear

• PCV-system problems

• Turbocharger issues

• Internal engine wear

• External leaks
   

If a vehicle repeatedly arrives low on oil, simply changing the oil does not solve the underlying issue.

We can help identify whether the engine is leaking oil, burning oil, or experiencing another problem.
 

Oil Life Monitoring Systems

Many newer vehicles use an oil-life monitoring system.

These systems may consider factors such as:

• Engine operating time

• Temperature

• Driving conditions

• Engine load

• Trip length

• Mileage
   

The oil-life monitor should generally be reset after service so the system can correctly track the next maintenance interval.

It is also important to remember that an oil-life monitor does not physically measure every aspect of oil condition.
 

Basic Vehicle Checks During Service

An oil change is a good opportunity to look over other basic maintenance items.

Depending on the vehicle, we may check:

• Coolant level

• Brake fluid

• Power steering fluid when applicable

• Washer fluid

• Tire condition

• Tire pressure

• Visible leaks

• Belts and hoses

• Battery condition

• Exterior lighting
   

These checks can help identify developing problems before they become more serious.
 

Severe Driving Conditions

Some vehicles need oil service more frequently because of how they are used.

Severe operating conditions may include:

• Frequent short trips

• Extended idling

• Towing

• Heavy loads

• Stop-and-go traffic

• Dusty environments

• Commercial use

• Extreme temperatures
   

A work truck or fleet vehicle may need a different maintenance schedule than a lightly driven passenger car.
 

Synthetic vs. Conventional Oil

Many modern engines require full synthetic oil.

Synthetic oils are designed to provide strong performance across a wide temperature range and generally resist oxidation and breakdown better than conventional oils.

However, the most important factor is using the oil specification required by the manufacturer.

The correct oil is more important than choosing based only on whether the bottle says “synthetic.”
 

Our Approach to Oil Changes

At Precision Automotive & Transmission, we treat an oil change as basic preventative maintenance—not simply a quick drain-and-fill.

Our service may include:

• Draining the old engine oil

• Replacing the oil filter

• Installing the correct oil type and viscosity

• Verifying the oil level

• Resetting the maintenance reminder when applicable

• Checking basic fluid levels

• Looking for visible leaks

• Inspecting basic vehicle condition
   

If we see something that needs attention, we let you know rather than waiting for it to become a larger repair.
 

Why Proper Oil Service Matters

Modern engines can be very sensitive to oil quality, oil level, and oil specification.

Using the wrong oil, extending service too long, or running the engine low on oil can create expensive internal problems.

Routine oil service helps protect the engine and gives us regular opportunities to catch developing concerns early.
 

Protecting Your Engine

An oil change may seem simple, but it plays a major role in engine life.

If your vehicle is due for service, Precision Automotive & Transmission can replace the oil and filter with the correct specification, check the vehicle’s basic condition, and help you stay ahead of maintenance before small problems become expensive ones.