Skip to main content

Introduction

A detailed look at changing the oil and filter, applies to any normal/older car with a spin-on filter and no electronic requirements

  1. 1991 Subaru Legacy Oil and filter change, Oil and filter: step 1, image 1 of 2 1991 Subaru Legacy Oil and filter change, Oil and filter: step 1, image 2 of 2
    • Collect the tools you'll need

    • Drain bolt wrench, drain-pan, jack, jack-stands, rags, filter-pliers, cardboard, funnel, gloves

    • Check what drain bolt size and type your car uses before starting

    • For Subaru specifically, I'll be using a black Tokyo Roki LFS706 factory filter, sold by a Subaru as part # 15208AA100 with a new crush washer

  2. 1991 Subaru Legacy Oil and filter change, Jacking up the car: step 2, image 1 of 3 1991 Subaru Legacy Oil and filter change, Jacking up the car: step 2, image 2 of 3 1991 Subaru Legacy Oil and filter change, Jacking up the car: step 2, image 3 of 3
    • Jack up the front of the car from the centre jack point if you have a hydraulic jack

    • Put jack-stands under pinch welds before gently lowering the car onto them

    • Check the stability of the stands before getting under the vehicle

  3. 1991 Subaru Legacy Oil and filter change, Check your drain pan: step 3, image 1 of 3 1991 Subaru Legacy Oil and filter change, Check your drain pan: step 3, image 2 of 3 1991 Subaru Legacy Oil and filter change, Check your drain pan: step 3, image 3 of 3
    • Check your drain pan is empty and clean it out as required

    • Raise the hood/bonnet and open the filler cap to assist draining

    • Place the drain pan under the car

  4. 1991 Subaru Legacy Oil and filter change, Drain the oil: step 4, image 1 of 3 1991 Subaru Legacy Oil and filter change, Drain the oil: step 4, image 2 of 3 1991 Subaru Legacy Oil and filter change, Drain the oil: step 4, image 3 of 3
    • Climb under the car using your cardboard or a creeper

    • Remove the drain bolt slowly, adjusting the catch pan as it starts to flow to avoid spillage

    • Wait for the oil to flow from the engine

  5. 1991 Subaru Legacy Oil and filter change, Replace the drain bolt: step 5, image 1 of 3 1991 Subaru Legacy Oil and filter change, Replace the drain bolt: step 5, image 2 of 3 1991 Subaru Legacy Oil and filter change, Replace the drain bolt: step 5, image 3 of 3
    • Clean the bolt

    • Remove the old crush washer if you have a new one

    • Fit the new crush washer onto the bolt

    • Clean the bolt mating flange on the cars oil pan

    • Put the bolt back into the engine and tighten to the suggested spec

    • If you don't have a torque wrench, don't over-tighten the bolt

  6. 1991 Subaru Legacy Oil and filter change, Remove and replace the oil filter: step 6, image 1 of 3 1991 Subaru Legacy Oil and filter change, Remove and replace the oil filter: step 6, image 2 of 3 1991 Subaru Legacy Oil and filter change, Remove and replace the oil filter: step 6, image 3 of 3
    • Carefully adjust the now-full catch pan under the oil filter

    • Remove the old oil filter, using pliers or a wrench if required

    • If it's too tight and you don't have the right tools, you can hammer a screwdriver through the side and rotate it... But hope you have the right replacement!

    • I like large oil filter pliers, as they can be used also for brake jobs

    • The filter will be full of oil so place on your drain pan or carefully upright if your pan has no place for it

    • After the car mounting flange stops dripping a lot, prepare the new filter with a smear of oil on its gasket

    • Be 100% sure you've removed the old gasket before installing the new filter

    • Wipe down the mounting flange on the engine, and screw on the new filter by hand, 3/4 of a turn past when it touches the gasket

  7. 1991 Subaru Legacy Oil and filter change, Remove pan and lower car: step 7, image 1 of 2 1991 Subaru Legacy Oil and filter change, Remove pan and lower car: step 7, image 2 of 2
    • Carefully slide the now-full catch pan from under the car

    • Lift the car slightly and pull away the jack stands

    • Carefully lower the car to the ground

    • Push the front of the car down a few times to reset the suspension

  8. 1991 Subaru Legacy Oil and filter change, Fill the car with oil: step 8, image 1 of 2 1991 Subaru Legacy Oil and filter change, Fill the car with oil: step 8, image 2 of 2
    • If your drain pan has gradations you can guess approximately how much oil to put in

    • Or if your manual has a listing

    • My car takes AROUND 4.5 litres

    • Using a funnel, pour in 3.5 litres or so

    • Check the dipstick with your rag

    • If you hold the large oil bottles sideways they won't glug as much

    • Fill until near top of range on dipstick

    • Re-check there are no loose tools or rags in the engine bay, and start the engine for 10 to 20 seconds

  9. 1991 Subaru Legacy Oil and filter change, Check for leaks and top up: step 9, image 1 of 1
    • After running the car for a few seconds, turn it off

    • Check the level again

    • The oil filter should be full now, so the level might be lower

    • Top up as required

    • Check under the car for leaks

  10. 1991 Subaru Legacy Oil and filter change, Cleanup: step 10, image 1 of 2 1991 Subaru Legacy Oil and filter change, Cleanup: step 10, image 2 of 2
    • If you used all your oil you should be able to use the empty bottle to put the used oil in

    • Funnel and lots of patience to transfer the oil from the catch pan to the empty bottle

    • You can drop off the old oil at car part places or some mechanics

    • Run the car around the block or so to get a temperature cycle and recheck level and leaks

    • DONE

Conclusion

Remember to check for leaks

Gaspard Leon

Member since: 04/24/2010

2,711 Reputation

8 Guides authored

0 Comments

Add Comment

View Statistics:

Past 24 Hours: 1

Past 7 Days: 5

Past 30 Days: 15

All Time: 858