Why check the motor oil level in my GMC G3500?

Engine oil lubricates moving parts in your engine. If you're low or out of oil, these components can grind against each other, generate excess heat, and eventually lead to GMC G3500 engine failure. That’s why you should check your oil and get it changed regularly.

How hard is it to change GMC G3500 oil at home?

Changing engine oil at home isn’t as simple as it’s made out to be. You’ll have to buy special tools and figure out a way to recycle the old oil properly. Having your oil changed professionally can not only reduce the risk of something going wrong during the service, but also help your car perform down the road.

Why is my GMC G3500 exhaust smoke grayish or blue?

You could have an oil leak and have a case of burning oil. Time to have a qualified technician check things out. The leak could be the result of worn valve seals, damaged piston rings, or damaged cylinder walls.

Who can change the oil on my GMC G3500?

You can count on Firestone Complete Auto Care for your GMC G3500 oil change, oil filter replacement, oil leak diagnostics, and more! Our expert technicians will even advise the right oil for your vehicle.

Why is the oil light on in my GMC G3500?

Your GMC G3500 oil change reminder light may come on if you're overdue for an oil change. The oil pressure light will typically come on if the oil level in the engine is too low, the oil pump is failing, you have a clogged oil filter, or there's a faulty oil pressure sensor.

Does my G3500's oil filter need to be changed during my oil change?

You should replace your GMC G3500 during each oil change. The filter captures debris and contaminants to help keep your oil clean, which means the filter gets dirty. If you skip replacing the filter, you’ll contaminate your new oil with the dirty filter.

1985 GMC G3500 Oil Change

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Get an Oil Change for Your GMC G3500

Give your G3500’s engine a little TLC with routine oil changes. Schedule your next appointment today.

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How Often to Change 1985 GMC G3500 Oil

Need more info about 1985 GMC G3500 oil changes? Turn to Firestone Complete Auto Care! Our expertise goes beyond tires. We know all about motor oil, too. After all, like our maintenance technician Brianna says, “Oil is the blood of the engine. It’s the #1 thing you can do for your car.”

Your 1985 G3500’s oil should be changed according to GMC’s recommended oil change intervals. Check the interval for your vehicle mileage in the table above. Outside of GMC-recommended oil change intervals, your G3500 may need an oil change if your check engine light is on, you hear knocking sounds coming from the engine, sense an oil smell in the cabin, or see an excess amount of vehicle exhaust. You might need an oil change more frequently than what’s recommended by GMC if you regularly haul heavy loads, frequent dusty roads, enjoy off-roading, or go at low speeds on long distance trips. In general, being extra-diligent about oil changes won’t damage your GMC G3500. In fact, every oil change is an opportunity to diagnose and treat any other issues, such as bad brakes or a failing battery.

What’s the Right Type of Oil for 1985 GMC G3500?

Your local Firestone Complete Auto Care has the right 1985 GMC G3500 motor oil: either synthetic or conventional. GMC has most likely outlined either synthetic or conventional as the best motor oil for your 1985 G3500. Motor oil helps lubricate the engine’s moving parts, regulate engine temperature, and prevent the build-up of harmful substances within the engine. During your oil change service, one of our techs will change your G3500’s oil, replace and recycle the old oil and filter, inspect the rest of your car’s filters, refill vital car fluids, and perform a courtesy inspection on your entire vehicle. You can drive with confidence knowing that we look out for you and your G3500 by taking into account your driving style, and odometer.

Types of Motor Oil for GMCs

Wondering what motor oil brands you can find at Firestone Complete Auto Care? We stock outstanding motor oils because that's what your engine deserves. Check your owner's manual and talk with a technician to select the right GMC G3500 oil, whether it's Pennzoil® High Mileage Vehicle® motor oil, Pennzoil Platinum® Full Synthetic motor oil with PurePlus™ Technology, or Shell Rotella® heavy-duty engine oil. With so many motor oil brands in the market, why do we carry these brands? They are proven winners. For instance, The Pennzoil Platinum® Full Synthetic line of motor oils with PurePlus® Technology is formulated from pure natural gas, unlike traditional synthetic motor oils, which helps lead to better performance. But don't forget about Shell Rotella for heavy-duty engines. It's specifically designed for diesel and gasoline engines that need to overcome the strenuous working conditions, and is uniquely fortified to offer improved oxidation resistance, heightened performance in extreme temperatures, and increased wear protection. For help selecting the right motor oil for your 1985 GMC G3500, defer to GMC's recommendations.

Where to Go for 1985 GMC G3500 Oil Change

The next time your GMC G3500 needs an oil change, you know where to go! Your local Firestone Complete Auto Care carries some of the most reliable engine oils for GMC vehicles. We’ve got convenient appointment times to take care of you, with the right oil at the right price. To find out how much a 1985 G3500 oil change costs, call ahead. Make an appointment for an oil change service today and let the oil experts take care of your G3500's engine. Many stores are open late and on weekends for your convenience.

[1] ILSAC GF-5 represents the latest performance standard set by the International Lubricant Standardization and Approval Committee (ILSAC), a joint effort of U.S. and Japanese automobile manufacturers. Most automobile manufacturers are expected to recommend oils that meet ILSAC GF-5. API SN is the most recent service category issued by API’s Lubricants Group. Oils meeting API SN and the new “Resource Conserving” designation meet all ILSAC GF-5 performance requirements.

1985 GMC G3500 Oil Change Q&A

Why check the motor oil level in my GMC G3500? Engine oil lubricates moving parts in your engine. If you're low or out of oil, these components can grind against each other, generate excess heat, and eventually lead to GMC G3500 engine failure. That’s why you should check your oil and get it changed regularly.
How hard is it to change GMC G3500 oil at home? Changing engine oil at home isn’t as simple as it’s made out to be. You’ll have to buy special tools and figure out a way to recycle the old oil properly. Having your oil changed professionally can not only reduce the risk of something going wrong during the service, but also help your car perform down the road.
Why is my GMC G3500 exhaust smoke grayish or blue? You could have an oil leak and have a case of burning oil. Time to have a qualified technician check things out. The leak could be the result of worn valve seals, damaged piston rings, or damaged cylinder walls.
Who can change the oil on my GMC G3500? You can count on Firestone Complete Auto Care for your GMC G3500 oil change, oil filter replacement, oil leak diagnostics, and more! Our expert technicians will even advise the right oil for your vehicle.
Why is the oil light on in my GMC G3500? Your GMC G3500 oil change reminder light may come on if you're overdue for an oil change. The oil pressure light will typically come on if the oil level in the engine is too low, the oil pump is failing, you have a clogged oil filter, or there's a faulty oil pressure sensor.
Does my G3500's oil filter need to be changed during my oil change? You should replace your GMC G3500 during each oil change. The filter captures debris and contaminants to help keep your oil clean, which means the filter gets dirty. If you skip replacing the filter, you’ll contaminate your new oil with the dirty filter.