5 Maintenance Checks That Should Be Done During an Oil Change


August 29, 2026

An oil change is one of the most frequent services a vehicle receives, which makes it a practical opportunity to check other systems for developing wear. Fresh engine oil protects internal parts, but it cannot prevent trouble caused by a low tire, coolant leak, worn belt, weak battery, or damaged brake component.


A useful oil change visit should include more than draining oil and installing a new filter. These five maintenance checks can identify concerns early, help protect reliability, and give drivers a clearer understanding of what their vehicle may need next.


1. Check All Fluid Levels And Look For Leaks


Engine oil is only one of several fluids required for safe operation. During an oil change, technicians should check coolant, brake fluid, transmission fluid when the design permits, power steering fluid on equipped vehicles, and windshield washer fluid.


A low fluid level usually has a cause. Engine oil may be leaking externally or being consumed internally. Coolant loss may come from a hose, water pump, radiator, thermostat housing, reservoir, or another connection. Low brake fluid can result from normal brake pad wear, but it can also indicate a hydraulic leak.


Technicians should look around pans, seals, hoses, fittings, reservoirs, and the underside of the vehicle for fresh fluid. Dried residue can also reveal a slow leak that is not leaving a puddle. Fluid color alone does not confirm condition, and topping off a low system does not replace finding the source of repeated loss.


2. Inspect Tires And Set The Correct Pressure


Tire pressure affects traction, braking, steering response, fuel economy, and tread life. Pressure should be checked when the tires are as close to cold as practical and adjusted to the specification on the driver’s door placard.


The inspection should include all four tires and the spare when accessible. Technicians should look for uneven wear, punctures, cracking, bulges, exposed cords, and objects lodged in the tread. Tread depth should be measured at several points because one shoulder may be far more worn than the center.


Common wear patterns provide useful information:


  • Wear on both shoulders can indicate prolonged underinflation
  • Center wear can result from excessive pressure
  • One-sided wear may point toward alignment or suspension trouble
  • Cupping can develop from weak shocks, struts, imbalance, or looseness
  • Feathering often appears when toe alignment is incorrect


Rotating the tires at the proper interval helps keep tread wear more even, but rotation does not correct damaged suspension parts or alignment concerns. An inspection should identify those causes before another tire is affected.


3. Review Brakes And Visible Suspension Parts


An oil change often places the vehicle on a lift, providing access to brake, steering, and suspension components that are difficult to see from the ground. Technicians can check visible brake pad thickness, rotor condition, hydraulic hoses, calipers, and signs of fluid leakage.


Brake noise is not the only reason to inspect the system. A sticking caliper may wear one pad much faster than the others without producing an immediate warning. Cracked hoses, corroded lines, and leaking wheel cylinders can weaken hydraulic performance.


The suspension check should include control arm bushings, ball joints, tie rods, sway bar links, shocks, struts, springs, wheel bearings, and CV axle boots where visible. Torn boots can release grease and allow contamination into joints. Loose steering or suspension parts may cause clunking, wandering, vibration, or uneven tire wear.


A complete brake or suspension evaluation may require wheel removal and additional testing, but a routine visual check can reveal concerns that deserve closer attention.


4. Inspect Belts, Hoses, And Cooling System Components


The serpentine belt drives the alternator, A/C compressor, and other accessories. On some engines, it also drives the water pump. A damaged belt can leave the vehicle without charging, power steering assistance, or proper coolant circulation.


Modern belts do not always develop obvious surface cracks. The ribs may become worn, glazed, contaminated, or separated. The tensioner and pulleys should also be checked for weak movement, misalignment, noise, and bearing play.


Cooling system hoses should be checked for swelling, hardening, soft spots, cracks, and leakage near clamps or fittings. Plastic thermostat housings, reservoirs, radiator connections, and quick-connect fittings can weaken after years of heat cycles.


Warning signs include:


  • Dried coolant residue
  • A sweet odor
  • Low coolant
  • Belt squeal
  • Pulley noise
  • Hose swelling
  • Cracks near hose ends
  • Fluid contamination on the belt


Oil or coolant on a belt can shorten its service life. Replacing the belt without repairing the leak can quickly damage the new part.


5. Test Battery Condition And Check Filters


A battery can continue starting the engine while losing reserve capacity. Testing during an oil change can reveal a weak battery before cold weather, high electrical demand, or a long period of parking leads to a starting problem.


Technicians should inspect the terminals, cables, hold-down, and battery case for corrosion, looseness, swelling, or leakage. A battery test can measure available starting capacity, while charging system checks confirm whether the alternator and connections are maintaining proper voltage.


The engine air filter and cabin air filter should also be reviewed when access is practical. A restricted engine filter can limit airflow under load, while a clogged cabin filter can weaken vent output, slow defrosting, and increase blower noise.


Filters should be replaced according to condition and the vehicle’s schedule, not automatically at every oil change. A proper inspection confirms whether the filter is dirty, damaged, incorrectly installed, or still suitable for continued use.


Use The Oil Change To Plan Future Service


An oil change creates a recurring opportunity to track tire wear, fluid loss, brake condition, battery strength, and aging rubber components. Comparing findings from one visit to the next helps technicians recognize changes before they become urgent.


Regular maintenance should be based on the factory schedule, service history, mileage, age, and current condition. Recommendations should clearly separate work that is due now, repairs affecting safety or reliability, and items that can be monitored.


Get Oil Change And Maintenance Checks In Albert Lea, MN, With Collins Auto Repair


Collins Auto Repair in Albert Lea, Minnesota, can replace your engine oil and filter while checking fluids, tires, brakes, suspension, belts, hoses, battery condition, and filters.


Contact us to schedule an oil change and inspection that helps identify developing concerns before they interrupt your driving.

Mechanic working under a car, inspecting the tire and suspension in a garage.
April 22, 2026
A vehicle is more than a means of transportation—it’s an essential part of daily life. From commuting to work and school to running errands and planning road trips, a reliable car keeps your schedule on track. When something starts to go wrong, even small issues can disrupt your day, create safety concerns, and lead to more expensive problems if ignored. Recognizing early warning signs can help you avoid costly repairs and unexpected breakdowns by seeking a professional auto repair service when it matters most. Many drivers overlook early symptoms because they seem minor at first. A faint noise, an unfamiliar smell, or a slight change in performance can feel harmless, yet these can be early indicators of developing mechanical problems. Understanding what to look for helps you take proactive steps to protect your investment and stay safe on the road. Pay Attention to Unfamiliar Sounds and Noticeable Vibrations One of the earliest indicators that something may be wrong with your vehicle is unusual noise. Grinding, squealing, knocking, or clunking sounds can indicate a wide range of problems. These noises may point to worn brakes, failing suspension components, or internal engine issues. If the sound appears suddenly or gets worse with time, it’s a sign that your vehicle needs professional attention. Vibrations are another common symptom of mechanical trouble. You might feel shaking through the steering wheel, floor, or seat. This can indicate problems with wheel balance, worn tires, suspension damage, or engine misfires. Even if the vehicle remains drivable, vibrations often indicate wear that will worsen if ignored. Pay close attention to when and where the noises occur. For example, a grinding sound during braking may point to brake pad wear, while clunking over bumps may indicate suspension trouble. Pinpointing these details can help a technician diagnose the issue more quickly and accurately. Environmental conditions can also play a role in unusual sounds or vibrations. Rough road surfaces, temperature changes, and moisture exposure can accelerate wear on certain parts, making early detection even more important. By understanding how these factors affect your vehicle, you can better identify when something is wrong. Ignoring strange sounds or vibrations can lead to expensive damage. Addressing them early through a professional auto repair service helps prevent more extensive repairs and keeps your vehicle running safely and smoothly. Take Dashboard Warnings and Indicator Lights Seriously Modern vehicles are equipped with advanced onboard diagnostic systems designed to detect problems before they escalate. Dashboard warning lights serve as early warnings that something requires attention. Common indicators include the check engine light, oil pressure warning, battery alert, and tire pressure monitor. When one of these lights illuminates, it’s a clear signal that a system needs evaluation. The check engine light is especially important because it can indicate issues ranging from minor sensor malfunctions to major engine or emissions problems. While some causes may be simple, ignoring the light can allow underlying issues to worsen. Prompt diagnostics ensure small problems don’t develop into major failures. According to Consumer Affairs, light trucks and passenger vehicles in the United States have an average age of 12.5 years. As vehicles age, the likelihood of mechanical or electronic issues increases, making dashboard warnings even more significant. Paying attention to alerts becomes more important as mileage and wear accumulate over time. Some warning lights may signal immediate danger, while others allow time to schedule a repair. However, ignoring any indicator for too long can lead to system failure or unsafe driving conditions. A quick diagnostic check can help determine the urgency and prevent long-term complications. A diagnostic scan by a qualified technician helps pinpoint the exact cause of warning lights. Seeking a professional auto repair service allows issues to be identified and resolved quickly, preventing further damage and maintaining the safety and reliability of your vehicle. Notice Shifts in Driving Performance and Fuel Efficiency Noticeable changes in how your vehicle performs can be a strong indicator of underlying issues. If acceleration feels sluggish, the engine struggles to maintain power, or the transmission shifts unpredictably, these could be signs of engine or transmission trouble. Addressing these symptoms early helps avoid breakdowns and more expensive repairs. Handling changes is another major warning sign. If the steering feels loose, the vehicle pulls to one side, or braking feels less responsive, these may point to alignment problems, brake system wear, or suspension damage. Since these systems directly impact safety, prompt inspection is essential. Fuel efficiency can also reveal hidden problems. A sudden drop in gas mileage may be caused by failing sensors, clogged filters, ignition problems, or fuel system issues. Tracking fuel consumption over time can help detect early warning signs before the problem becomes severe. Driving habits and road conditions can also affect performance. Heavy traffic, frequent stop-and-go driving, and towing heavy loads put extra stress on the engine and drivetrain. Over time, these conditions can accelerate wear and increase the likelihood of mechanical problems. If you notice a decline in performance, responsiveness, or efficiency, seeking a professional auto repair service ensures your vehicle receives proper diagnostics and repairs before the issue escalates. Early intervention helps maintain smooth driving and reduces long-term repair costs. Watch for Leaks, Odors, and Visible Signs of Trouble Fluid leaks are one of the clearest signs that your vehicle needs attention. Different fluids serve critical roles in engine lubrication, cooling, braking, and steering. Oil leaks, coolant drips, transmission fluid loss, and brake fluid leaks can all lead to major mechanical failure if not addressed. Spots on your driveway or garage floor should never be ignored. Unusual odors can also signal trouble. A burning smell may indicate overheated components, worn brakes, or electrical issues. Sweet smells often point to coolant leaks, while fuel odors may indicate problems with the fuel system. These smells are important indicators that something is wrong under the hood. Smoke is an even more urgent sign of trouble. Blue smoke can indicate oil burning, white smoke may signal coolant entering the engine, and black smoke often points to fuel system problems. Each of these conditions requires immediate attention to prevent further damage. Visual inspection under the hood can also help identify problems early. Cracked belts, worn hoses, or visible corrosion around the battery can signal potential issues. Addressing these problems before they escalate can prevent breakdowns and extend the life of your vehicle. When leaks, smells, or smoke appear, it’s important to act quickly. A professional auto repair service can diagnose the source, repair damaged components, and prevent further mechanical complications. Recognizing the warning signs that your vehicle needs repair is one of the most effective ways to protect your investment and ensure safety on the road. Strange noises, warning lights, performance issues, fluid leaks, and unusual smells should never be ignored. Paying attention to these indicators allows problems to be addressed early, preventing larger repairs and unexpected breakdowns. Routine inspections and timely repairs extend the life of your vehicle and improve overall reliability. By staying alert to changes in your car’s performance and seeking a qualified auto repair service when needed, you can avoid costly repairs, maintain safety, and enjoy a smoother driving experience for years to come. If your vehicle is showing signs of trouble, don’t wait until the problem gets worse—contact Collins Auto Repair for a reliable auto repair service that keeps you safely on the road. A visit with us can help prevent costly breakdowns and keep your car running smoothly.