1990 Mercedes-Benz 420SEL Oil Change

1990 Mercedes-Benz 420SEL Maintenance Schedule

What is the manufacturer-recommended maintenance schedule for a 1990 Mercedes-Benz 420SEL? Find maintenance info for your vehicle.

When to Change 1990 Mercedes-Benz 420SEL Engine Oil

Looking for oil change recommendations for your 1990 Mercedes-Benz 420SEL? Look no further than Firestone Complete Auto Care! We are experts in car care — not just tires. We know the ins and outs of motor oil, too. After all, "Oil is the blood of the engine. It's the #1 thing you can do for your car," says our maintenance technician, Brianna.

Mercedes-Benz recommends having your 1990 Mercedes-Benz 420SEL’s motor oil changed at regular intervals. See mileage and month specifics in the above table. Outside of Mercedes-Benz-recommended oil change intervals, your 420SEL may need an oil change if your check engine light is on, you hear knock knock knock coming from the engine, smell oil inside the vehicle, or notice excess vehicle exhaust. You may also need an oil change more frequently than Mercedes-Benz recommends if you haul heavy loads, drive in dusty terrain, go off-roading a lot, or drive at low speeds for long distances. Generally, getting more frequent oil changes won’t hurt your Mercedes-Benz 420SEL. In fact, more frequent oil changes give our technicians more opportunities to catch and alert you to any issues, like worn brake pads or a weak battery.

What’s the Right Type of Oil for 1990 Mercedes-Benz 420SEL?

Whether you need high mileage oil, synthetic oil, or conventional oil, you'll find the right 1990 Mercedes-Benz 420SEL motor oil at Firestone Complete Auto Care. Mercedes-Benz has recommendations as to whether conventional or synthetic oil is the best motor oil for your 1990 420SEL. Motor oil reduces friction between engine components, maintain proper engine temperature, and keep harmful substances from building up inside the engine. During your oil change service, a technician will change your 420SEL's oil, replace and recycle your used oil and filter, inspect the rest of your car’s filters, top-off essential fluids, and visually inspect the rest of the vehicle. You can drive with confidence knowing that we look out for you and your 420SEL by taking into account your driving style, and mileage.

Types of Motor Oil for Mercedes-Benzs

Wondering if we carry the right motor oil for your Mercedes-Benz? Your 420SEL engine deserves the very best, which is why we only stock the best! Check your owner's manual and talk with a technician to select the right Mercedes-Benz 420SEL oil, whether it's Quaker State® Advanced Durability™ conventional oil, Pennzoil® High Mileage Vehicle® motor oil, Pennzoil Platinum® Full Synthetic motor oil with PurePlus™ Technology, or Shell Rotella® heavy-duty engine oil. There are plenty of motor oils on the market today, so why do we prefer these brands? They are proven winners. For example, when tested on taxi fleets from coast to coast, Quaker State was shown to provide double the protection when compared to the industry standard. [1] And Pennzoil? Pennzoil Synthetics feature the capabilities to advance with vehicle technology to offer complete protection for not only the engines of today, but also the engines of tomorrow. Then there's Shell Rotella heavy-duty engine oil. It's made for gasoline and diesel engines that need to withstand rugged conditions, and is uniquely strengthened to deliver improved oxidation resistance, heightened performance in extreme temperatures, and increased wear protection. For help selecting the right motor oil for your 1990 Mercedes-Benz 420SEL, defer to Mercedes-Benz's recommendations.

Where to Go for 1990 Mercedes-Benz 420SEL Oil Change

When the time for your 420SEL’s next oil change rolls around, you’ll know where to get it. Your nearest Firestone Complete Auto Care has the ideal oil for your 420SEL’s engine. We’ve got convenient appointment times to take care of you, with the right oil at the right price. Find out how much your Mercedes-Benz 420SEL oil change will cost by calling ahead. Get professional engine care by making an oil change appointment for your 420SEL today. For your convenience, many of our stores are open late and on weekends!

[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.

Oil Change Q&A for Your 1990 Mercedes-Benz 420SEL

  • What can low oil do to my Mercedes-Benz 420SEL engine? Motor oil lubricates important engine parts. If your oil runs low, these parts can grind together, generate too much heat, and cause your 420SEL’s engine to fail. That’s why you should check your oil and get it changed regularly.
  • Can I change my Mercedes-Benz 420SEL oil at home? Changing your own oil isn't as convenient as you might think. You’ll have to buy special tools and figure out a way to recycle the old oil properly. Getting a professional oil change reduces the risk of something going wrong during the service, but it’ll also help your car perform smoothly down the road.
  • Why is my Mercedes-Benz 420SEL exhaust smoke grayish or blue? There could be an oil leak and your engine is burning oil. It may be time for a pro to take a look. A leak can be caused by a variety of issues including faulty valve seals, blown piston rings, or damaged cylinder walls.

Get Your Mercedes-Benz 420SEL Oil Changed

Help your 1990 Mercedes-Benz 420SEL run newer, longer with routine oil changes. Schedule your oil change appointment today.