How to Change Your Car or Truck Oil

July 28, 2026
Blain's Farm & Fleet

Changing your own oil is one of the easiest ways to save money, protect your engine, and gain a little confidence under the hood. With the right tools and a free afternoon, most families can handle this job in the driveway. And thanks to modern synthetic oils, you’ll do it far less often than your parents did.

This guide walks you through everything you need to know, from picking the right oil to disposing of the old stuff safely. Here’s what you’ll walk away with:

  • The truth about oil change intervals (spoiler: it’s not every 3,000 miles anymore)
  • How to find the exact oil your car or truck needs
  • A complete tool checklist so you’re not running back to the store mid-job
  • Clear, step-by-step instructions for beginners and weekend mechanics alike

Let’s get started.

How Often Should I Change My Oil?

Most modern vehicles need an oil change every 5,000 to 10,000 miles, depending on the oil type and your manufacturer’s recommendation. The old “every 3,000 miles” rule is outdated for the vast majority of cars and trucks on the road today.

Here’s why that changed. Engines are better built now, and oil chemistry has come a long way. Full synthetic oils resist breakdown far longer than the conventional oils common in decades past. Many newer vehicles also have built-in oil life monitors that tell you exactly when it’s time.

Your best source is always your owner’s manual. As a general guide:

  • Conventional oil: every 3,000–5,000 miles
  • Synthetic blend: every 5,000–7,500 miles
  • Full synthetic: every 7,500–10,000+ miles

Keep in mind that severe driving conditions, like short trips, towing, extreme heat, or dusty roads, can shorten these intervals. When in doubt, check your manual and follow your oil life monitor.

What Oil Does My Car Need?

Your vehicle needs the specific oil grade and type listed in your owner’s manual or printed on the oil filler cap. Using the wrong grade can hurt performance and fuel economy.

You’ll usually see a code like 5W-30 or 0W-20. The first number and “W” (for winter) show how the oil flows in cold temperatures. The second number shows how it performs when the engine is hot. Match this exactly to your manufacturer’s spec.

Conventional vs. Synthetic vs. Synthetic Blend

Choosing the right oil type is a balance of cost, protection, and how often you want to do this job. Here’s a quick comparison:

  • Conventional oil: The most affordable option. It works fine for older engines and light-duty use, but it breaks down faster and needs changing more often.
  • Synthetic blend: A mix of conventional and synthetic. It offers better protection and longer intervals than conventional oil at a moderate price. A solid middle-ground choice for many families.
  • Full synthetic: The premium pick. It delivers the best protection, performs well in extreme temperatures, and lasts the longest between changes. Ideal for newer vehicles, turbocharged engines, and towing.

If your manual calls for full synthetic, don’t downgrade. Many modern engines are designed specifically for it.

Can I Change My Own Oil?

Yes. Changing your own oil is a beginner-friendly job that most people can complete in 60 minutes with basic tools. You don’t need to be a mechanic. You just need patience, the right supplies, and a safe place to work.

That said, if you’re short on time or don’t have the tools, a professional service center can handle it quickly. But if you enjoy hands-on projects, this is a rewarding skill worth learning.

Tools and Supplies Checklist

Gather everything before you start so you’re not stuck mid-job. Here’s what you’ll need:

Having quality, durable tools on hand makes this job faster and safer every time you do it.

Safety First

Before you slide under your vehicle, take these precautions seriously:

  • Never work under a car supported only by a jack. Always use jack stands or ramps.
  • Set the parking brake and place wheel chocks behind the rear wheels.
  • Let the engine cool slightly if it’s very hot. Warm oil drains best, but you don’t want to burn yourself.
  • Wear gloves and avoid skin contact with hot oil.
  • Work on level ground for accurate oil readings and stable footing.

Now you’re ready to get to work.

How to Change Your Oil: Step-by-Step

Time needed: 45 minutes

  1. Prepare Your Vehicle

    Start your engine and let it run for a few minutes. This warms the oil so it drains faster and more completely. Then drive onto your ramps or lift the vehicle with a floor jack and jack stands.

    Set the parking brake and place wheel chocks behind the rear wheels. Turn the engine off before moving on. Don’t skip this prep, it keeps you safe and makes the whole job easier.

  2. Drain the Old Oil

    Lay out your tools within easy reach. Put on your gloves and slide underneath the vehicle to locate the drain plug on the bottom of the engine’s oil pan.

    Position your drain pan directly beneath the plug. Using a wrench, unscrew the plug counterclockwise and let the oil drain fully. Keep your hands clear, the oil may still be hot.

    While it drains, inspect the plug. Wipe away dirt and debris. If you see cracks or worn threads, replace it. Once the oil stops draining, reinstall the plug and tighten it snugly. Do not over-tighten, as this can strip the threads and cause leaks.

  3. Remove the Old Oil Filter

    The oil filter is usually near the oil pan, often on the front side of the engine. Slide your drain pan under it, then use your oil filter wrench to turn the filter counterclockwise.

    Expect some oil to leak out as it loosens. Check the bottom of the old filter for its rubber gasket. If the gasket isn’t there, check the mounting surface, it may have stuck. Remove and discard it, then let the old filter drain fully.

  4. Install the New Oil Filter

    Dip your finger in fresh oil and rub a thin coat onto the new filter’s rubber gasket. This creates a proper seal and makes future removal easier.

    Screw the new filter on by hand until it’s snug, then give it a slight extra turn. Hand-tighten only. Using a wrench here can over-tighten the filter, causing leaks and making it nearly impossible to remove next time.

  5. Add Fresh Motor Oil

    Check your owner’s manual or the oil filler cap for the correct grade and capacity. Remove the oil filler cap on top of the engine (usually labeled “engine oil”).

    Place your funnel in the opening and pour in the fresh oil. Add slightly less than the full capacity at first, you’ll top off after checking the level. Wipe the cap clean, inspect it for wear, and replace it.

  6. Lower Your Vehicle

    Carefully lower the vehicle back to the ground. Remove the wheel chocks once it’s stable and back on level ground.

  7. Check Your Oil Level

    Start the engine and let it run for a minute or two, then shut it off and wait a moment for the oil to settle. Pull the dipstick, wipe it clean, reinsert it fully, then pull it again.

    Hold the dipstick horizontally and read the level. It should sit between the “add” and “full” marks. If it’s low, add small amounts and recheck until it reads in the correct range. Don’t overfill.

  8. Clean Up and Dispose of the Old Oil Properly

    Wipe down your tools and clean any spills with oil absorbent. Never pour used oil down a drain or onto the ground, it’s harmful to the environment and often illegal.

    Pour the used oil into a sealed container and take it, along with the old filter, to a recycling center or auto parts store that accepts them. Many locations take used oil for free.

    Tip: Check your oil level regularly, roughly once a week or at every fuel stop, to catch leaks or low levels early.

Common Oil Change Mistakes to Avoid

Even simple jobs have pitfalls. Watch out for these:

  • Over-tightening the drain plug or filter. This strips threads and causes leaks.
  • Using the wrong oil grade. Always match your manual’s spec.
  • Forgetting to add new oil before starting the engine. Running a dry engine causes serious damage.
  • Skipping the filter gasket check. A double-gasket situation leads to major leaks.
  • Improper disposal. Recycle your used oil, don’t dump it.

Avoid these and your oil change will go smoothly every time.

Frequently Asked Questions

How long does an oil change take?

A DIY oil change takes about 30 to 45 minutes once you have your tools ready and have done it a few times. Your first time may take a bit longer.

Do I need to change the oil filter every time?

Yes. Replacing the filter with every oil change is standard practice and ensures your fresh oil stays clean.

Can I mix synthetic and conventional oil?

Yes, in a pinch, mixing won’t harm your engine. But for best results, stick with one type that matches your manufacturer’s recommendation.

What happens if I don’t change my oil?

Old oil breaks down and loses its ability to protect your engine. Skipping changes leads to sludge buildup, overheating, and eventually expensive engine damage.

Final Takeaway

Changing your own oil is a simple, money-saving skill that keeps your car or truck running longer. The biggest update to remember: forget the old 3,000-mile rule and follow your manual, most vehicles now go 5,000 to 10,000+ miles between changes, especially with full synthetic oil.

Grab your tool checklist, pick the right oil for your vehicle, and set aside an afternoon this week to give it a try. If you’d rather leave it to the pros, or you’re missing a few tools, stop by an Automotive Service Center where trained technicians can take care of it for you.