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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1988 Subaru XtOil Type & Capacity
OEM spec from the factory service manual for the GL, 1.8 4, Automatic variant.
Quick Answer
Oil Type
$API - SAE 5W-30 (Below -30Deg.F to -5Deg.F), 10W-30/40/50 (Below -30Deg.F to 90Deg.F), 30, 20W-40/50 (30Deg.F to 90Deg.F), 40 (Above 90Deg.F)
Capacity (w/ Filter)
4.20 QTS.
3.97 L
Variant
GL, 1.8 4, Automatic
This vehicle's factory manual
The oil spec is above. This opens the fluids section of the 1988 Subaru Xt GL, 1.8 4, Automatic factory book.
What You'll Need
Engine Oil
$API - SAE 5W-30 (Below -30Deg.F to -5Deg.F), 10W-30/40/50 (Below -30Deg.F to 90Deg.F), 30, 20W-40/50 (30Deg.F to 90Deg.F), 40 (Above 90Deg.F) for Subaru Xt
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Oil Filter
Subaru Xt Oil Filter
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Tool
Oil Filter Wrench
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Kit
Funnel + Drain Pan Kit
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Related for Your 1988 Subaru Xt
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Frequently Asked Questions
- What type of oil does a 1988 Subaru Xt take?
- The 1988 Subaru Xt requires API - SAE 5W-30 (Below -30Deg.F to -5Deg.F), 10W-30/40/50 (Below -30Deg.F to 90Deg.F), 30, 20W-40/50 (30Deg.F to 90Deg.F), 40 (Above 90Deg.F). The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the GL, 1.8 4, Automatic configuration.
- How much oil does a 1988 Subaru Xt need?
- The 1988 Subaru Xt takes 4.20 QTS. (3.97 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 1988 Subaru Xt?
- Yes — synthetic oil that meets the API - SAE 5W-30 (Below -30Deg.F to -5Deg.F), 10W-30/40/50 (Below -30Deg.F to 90Deg.F), 30, 20W-40/50 (30Deg.F to 90Deg.F), 40 (Above 90Deg.F) specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 1988 Subaru Xt?
- Using oil that does not meet the API - SAE 5W-30 (Below -30Deg.F to -5Deg.F), 10W-30/40/50 (Below -30Deg.F to 90Deg.F), 30, 20W-40/50 (30Deg.F to 90Deg.F), 40 (Above 90Deg.F) specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.