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Below are the AMSOIL oil and filter recommendations for your 1988 Subaru XT with the 2.7L 6-Cylinder.
1988 SUBARU XT 2.7L 6-CYLINDER ENGINE CODE 9
Your 1988 Subaru XT runs the 2.7L 9 boxer engine, a design Subaru has refined for decades. The flat-four layout keeps weight low and makes the car handle better than its competitors, but it also means the engine depends heavily on good oil circulation. The crank and bearings sit low, and every component relies on a strong oil film.
Subaru owners who run AMSOIL consistently report cleaner engines and quieter cold starts. The 9 is not a fragile engine, but it is old enough now that oil choice matters more than it did when the car was new. Sludge is the enemy of a boxer, and a high-detergent synthetic is the best defense.
AMSOIL Signature Series provides the deposit control and thermal stability this engine needs, and its extended drain capability means you can follow the manufacturer schedule with confidence.
The 1988 Subaru XT 2.7L 6-Cylinder requires 10W-30 full synthetic motor oil. Capacity is 5.3 quarts including filter.
Here is what you need:
You need 5.3 quarts of AMSOIL Signature Series 10W-30 100% Synthetic Motor Oil ATMQT-EA which you can learn more about here: AMSOIL synthetic motor oil 10W-30
You need the AMSOIL nano fiber long life oil filter for your XT which is: EA15K51
Drain Plug Torque Spec: 33 ft/lbs - always replace the drain plug gasket when changing oil.
To learn how to get wholesale dealer pricing go to: Where can I buy AMSOIL.
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