1989 Buick ESTATE WAGON Oil Capacity, Types, & Filters
Your ultimate DIY maintenance guide for the 1989 Buick ESTATE WAGON oil change is here! No more searching – find all the critical oil specs for your 1989 Buick ESTATE WAGON, including exact engine oil capacity, the manufacturer recommended oil viscosity and type, and the correct OEM and aftermarket oil filters.
We cover all available engine options categorized by their specific engine codes, ensuring you get pinpoint accuracy for your specific vehicle configuration. Keep reading to discover everything required for a successful 1989 Buick ESTATE WAGON oil change!
Scroll Table ➜
| Engine & Code | Oil Capacity | Oil Viscosity/Type | Oil Filter |
|---|---|---|---|
| 5.0L 8-cylinder [Y] Y | 4.5 quarts (with filter) | SAE 10W-30 (Above -18°C) 30 (Above 4°C) SAE 5W-30 (All TEMPS) | N/A |
Select Your 1989 Buick ESTATE WAGON Engine Option
5.0L 8-cylinder Engine Code [Y] Y
Engine:
5.0L 8-cylinder [Y] Y [aka 5.0L 8-cylinder]
Body & Trims:
All
Oil Capacity:
4.5 quarts (with filter)
Oil Viscosity/Type:
SAE 10W-30 (Above -18°C)
30 (Above 4°C)
SAE 5W-30 (All TEMPS)
OEM Oil Filter:
N/A
Oil Filter Replaces:
N/A
1989 Buick ESTATE WAGON 5.0L 8-cylinder [Y] Y oil change details
Oil Grade:
API*
Oil Capacity:
4.5 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
Oil Viscosity/Type:
SAE 10W-30 (Above -18°C)
30 (Above 4°C) - Use this viscosity only if the other recommended options are unavailable.
SAE 5W-30 (All TEMPS)
Oil Drain Plug Torque:
30 ft/lbs (Oil Drain Plug)
Notes:
N/A
People also ask – 1989 Buick ESTATE WAGON
What is the oil capacity of a 1989 Buick ESTATE WAGON?
Depending on the specific engine option, the 1989 Buick ESTATE WAGON oil capacity ranges from 4.5 to 4.5 quarts. Here is the exact oil capacity breakdown for each available engine configuration:
• 5.0L 8-cylinder ([Y] Y): 4.5 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
Always check your dipstick after refilling to ensure the proper level.
What type of oil does a 1989 Buick ESTATE WAGON use?
Across its 1 available engine configurations, the 1989 Buick ESTATE WAGON uses the following motor oil viscosities: SAE 10W-30 (Above -18°C) 30 (Above 4°C)SAE 5W-30 (All TEMPS). Using the correct manufacturer-approved oil weight is crucial for engine health. Here are the specific oil type requirements by engine:
• 5.0L 8-cylinder ([Y] Y):Grade: API*
SAE 10W-30 (Above -18°C)
30 (Above 4°C) - Use this viscosity only if the other recommended options are unavailable.
SAE 5W-30 (All TEMPS)
What is the best oil filter for the 1989 Buick ESTATE WAGON?
The proper oil filter depends on your exact engine code. The 1989 Buick ESTATE WAGON utilizes the following premium aftermarket Wix oil filters across its lineup: 51045-EA. Here is the specific OEM and aftermarket filter data for each engine:
• 5.0L 8-cylinder ([Y] Y):OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: 51045-EA
How often should I change the oil in my 1989 Buick ESTATE WAGON?
For modern models running full synthetic oil, oil change intervals are typically every 7,500 to 10,000 miles. However, for older Buick ESTATE WAGON generations (1985-2010) or those using conventional/synthetic-blend fluid, changing the oil and filter every 3,000 to 5,000 miles is highly recommended to prevent sludge buildup. Regardless of engine (5.0L 8-cylinder), you should change your oil at least once a year even if you don’t reach the mileage limit.