1990-1997 Mazda Miata Oil Change

Changing the oil on a 1990-1997 Mazda MX-5 Miata.

  • Author: David Hodson
  • Time required: 30 to 45 minutes
  • Difficulty: Moderate
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Change the oil in your first generation NA MX-5 Miata to keep it running strong. Regular oil changes are one of the easiest DIY maintenance procedures to prolong engine life.

For years, 3,000 miles was the correct interval to wait between oil changes, but that is no longer the case. Conventional oil in today's engines can easily last over 5,000 miles between changes. Synthetic oils are even more durable, maintaining good engine performance beyond 10,000 miles.

Tools
Relevant Parts
  • Engine Oil - Quart (3.8) , 10W-40 See guide step 10 for acceptable oil viscosities.
  • Oil Filter Check an online database or the parts counter at your local auto parts store for the correct part number.
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Add Note Edit Step 1 — 1990-1997 Mazda Miata Oil Change  ¶ 

  • Begin jacking up the front driver's side corner of the car by placing a jack between the two notches towards the front of the car on the long vertical part of the frame.

  • It is helpful, but not necessary to jack both sides of the car. Since the oil drain plug drains to the passenger side of the vehicle centerline, jacking up the just the driver side is sufficient.

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Add Note Edit Step 2  ¶ 

  • Raise the corner of the car enough so that you can comfortably work underneath it.

  • Place a jack stand underneath the frame next to the jack.

  • Slowly lower the jack so that the car is resting on the jack stand.

  • Many hydraulic jacks are lowered by placing the open end of the handle over a knob and turning it counterclockwise. Consult the owner's manual for your jack if you don't know how to lower it.

  • Never work underneath a car that is only supported by a jack. The jack may slip or fail, resulting in serious injury or death.

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Add Note Edit Step 3  ¶ 

  • Locate the 19 mm hex oil drain plug on the passenger side of the oil pan.

  • Place an oil drain pan underneath the oil drain plug.

  • Be sure that the drain pan is positioned so that it will catch the oil when it is streaming out of the oil pan.

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Add Note Edit Step 4  ¶ 

  • Always wear protective gloves and eyewear when working with motor oil. Be careful if your car has been running recently as the engine and transmission may be very hot. Keep rags or towels nearby to wipe up any spills.

  • Use a 19 mm box end wrench or socket wrench to loosen the oil drain plug.

  • After a few full turns with the wrench, use your fingers to loosen the oil drain plug.

  • When the drain plug is completely loose, let it fall into the oil drain pan with the draining oil.

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Add Note Edit Step 5  ¶ 

  • Watch the draining oil for shiny specks. Metal flakes in the oil could mean that there is a serious problem with the internals of your engine.

  • Allow oil to drain out of the oil pan until it slows to small drops.

  • Once the draining has slowed significantly, wipe off the area around the oil drain with a rag or towel.

  • Replace the drain plug and hand-tighten it.

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Add Note Edit Step 6  ¶ 

  • Open the driver's side door and locate the hood release lever.

  • Pull the lever until you hear the hood click open.

  • Locate the black hood catch lever just to the driver's side of the center of the hood at the front of the car.

  • Lift the lever with one hand while lifting up the hood with the other.

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Add Note Edit Step 7  ¶ 

  • With the hood raised, insert the hood prop into the hole marked "rod" on the inside of the hood.

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Add Note Edit Step 8  ¶ 

  • The oil filter is a small cylinder, about 2.5" in diameter, located on the right side of the engine underneath the intake manifold.

  • Hold a rag or towel underneath the oil filter and grab the filter with your hand. The rag will be used to catch any leaking oil when removing the filter

  • Loosen the oil filter by twisting it counterclockwise.

  • You may have to use an oil filter wrench if the filter is on too tight. There is very limited space next to the engine, though, so a wrench that fits over the top of the filter is ideal.

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