1984 Mazda 626 Oil Capacity, Types, & Filters
Your ultimate DIY maintenance guide for the 1984 Mazda 626 oil change is here! No more searching – find all the critical oil specs for your 1984 Mazda 626, 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 1984 Mazda 626 oil change!
Scroll Table ➜
| Engine & Code | Oil Capacity | Oil Viscosity/Type | Oil Filter |
|---|---|---|---|
| 2.0L 4-cylinder 1998cc Diesel | – | – | Mazda G6Y014302P1 |
| 2.0L 4-cylinder 1998cc | 4.5 quarts (with filter) | SAE 10W-30 (-25 To 29°C) SAE 10W-40, SAE 10W-50 (Above -25°C) SAE 20W-20 (-9 To 20°C) SAE 20W-40, SAE 20W-50 (Above -9°C) 30 (0 To 39°C) 40 (Above 29°C) SAE 5W-20 (Below -20°C) | Mazda G6Y014302P1 |
| 2.0L 4-cylinder 1998cc Diesel | – | – | Mazda RFY6-14-302 |
| 2.0L 4-cylinder 1998cc | 4.5 quarts (with filter) | SAE 10W-30 (-25 To 29°C) SAE 10W-40, SAE 10W-50 (Above -25°C) SAE 20W-20 (-9 To 20°C) SAE 20W-40, SAE 20W-50 (Above -9°C) 30 (0 To 39°C) 40 (Above 29°C) SAE 5W-20 (Below -20°C) | Mazda RFY6-14-302 |
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Recommended Motor Oil
Select Your 1984 Mazda 626 Engine Option
2.0L 4-cylinder Engine Code 1998cc Diesel
Engine:
2.0L 4-cylinder 1998cc Diesel [aka 2.0L L4 (Diesel)]
Body & Trims:
DX, LX
OEM Oil Filter:
Oil Filter Replaces:
F2Y0-14-302A, F2Y014302, G6Y0-14-302, G6Y0-14-302A, JEY0-14-302-9A
1984 Mazda 626 2.0L 4-cylinder 1998cc Diesel oil change details
Wix Oil Filter:
2.0L 4-cylinder Engine Code 1998cc
Engine:
2.0L 4-cylinder 1998cc [aka 2.0L L4 (Diesel)]
Body & Trims:
DX, LX
Oil Capacity:
4.5 quarts (with filter)
Oil Viscosity/Type:
SAE 10W-30 (-25 To 29°C)
SAE 10W-40, SAE 10W-50 (Above -25°C)
SAE 20W-20 (-9 To 20°C)
SAE 20W-40, SAE 20W-50 (Above -9°C)
30 (0 To 39°C)
40 (Above 29°C)
SAE 5W-20 (Below -20°C)
OEM Oil Filter:
Oil Filter Replaces:
F2Y0-14-302A, F2Y014302, G6Y0-14-302, G6Y0-14-302A, JEY0-14-302-9A
1984 Mazda 626 2.0L 4-cylinder 1998cc oil change details
Oil Grade:
SL
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 (-25 To 29°C)
SAE 10W-40, SAE 10W-50 (Above -25°C)
SAE 20W-20 (-9 To 20°C)
SAE 20W-40, SAE 20W-50 (Above -9°C)
30 (0 To 39°C)
40 (Above 29°C)
SAE 5W-20 (Below -20°C)
Wix Oil Filter:
Coolant Capacity:
7.4 quarts
2.0L 4-cylinder Engine Code 1998cc Diesel
Engine:
2.0L 4-cylinder 1998cc Diesel [aka 2.0L L4 (Gas)]
Body & Trims:
LX
OEM Oil Filter:
Mazda RFY6-14-302
Oil Filter Replaces:
RF0123802A, RFY2-14-302
1984 Mazda 626 2.0L 4-cylinder 1998cc Diesel oil change details
Wix Oil Filter:
2.0L 4-cylinder Engine Code 1998cc
Engine:
2.0L 4-cylinder 1998cc [aka 2.0L L4 (Gas)]
Body & Trims:
LX
Oil Capacity:
4.5 quarts (with filter)
Oil Viscosity/Type:
SAE 10W-30 (-25 To 29°C)
SAE 10W-40, SAE 10W-50 (Above -25°C)
SAE 20W-20 (-9 To 20°C)
SAE 20W-40, SAE 20W-50 (Above -9°C)
30 (0 To 39°C)
40 (Above 29°C)
SAE 5W-20 (Below -20°C)
OEM Oil Filter:
Mazda RFY6-14-302
Oil Filter Replaces:
RF0123802A, RFY2-14-302
1984 Mazda 626 2.0L 4-cylinder 1998cc oil change details
Oil Grade:
SL
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 (-25 To 29°C)
SAE 10W-40, SAE 10W-50 (Above -25°C)
SAE 20W-20 (-9 To 20°C)
SAE 20W-40, SAE 20W-50 (Above -9°C)
30 (0 To 39°C)
40 (Above 29°C)
SAE 5W-20 (Below -20°C)
Wix Oil Filter:
Coolant Capacity:
7.4 quarts
People also ask – 1984 Mazda 626
What is the oil capacity of a 1984 Mazda 626?
The 1984 Mazda 626 oil capacity is 4.5 quarts for every engine with a listed capacity. Here is the exact oil capacity breakdown for each available engine configuration:
• 2.0L 4-cylinder (1998cc Diesel): Check Owner's Manual
• 2.0L 4-cylinder (1998cc): 4.5 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
• 2.0L 4-cylinder (1998cc): 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 1984 Mazda 626 use?
Across its 4 available engine configurations, the 1984 Mazda 626 uses the following motor oil viscosities: SAE 10W-30 (-25 To 29°C)SAE 10W-40, SAE 10W-50 (Above -25°C)SAE 20W-20 (-9 To 20°C)SAE 20W-40, SAE 20W-50 (Above -9°C) 30 (0 To 39°C) 40 (Above 29°C)SAE 5W-20 (Below -20°C). Using the correct manufacturer-approved oil weight is crucial for engine health. Here are the specific oil type requirements by engine:
• 2.0L 4-cylinder (1998cc Diesel):See Cap or Owner's Manual
• 2.0L 4-cylinder (1998cc):
Grade: SL
SAE 10W-30 (-25 To 29°C)
SAE 10W-40, SAE 10W-50 (Above -25°C)
SAE 20W-20 (-9 To 20°C)
SAE 20W-40, SAE 20W-50 (Above -9°C)
30 (0 To 39°C)
40 (Above 29°C)
SAE 5W-20 (Below -20°C)
What is the best oil filter for the 1984 Mazda 626?
The proper oil filter depends on your exact engine code. The 1984 Mazda 626 utilizes the following premium aftermarket Wix oil filters across its lineup: 51324-EA and 51357-EA. Here is the specific OEM and aftermarket filter data for each engine:
• 2.0L 4-cylinder (1998cc Diesel):OEM Filter: Mazda G6Y014302P1
Wix Filter: 51324-EA
• 2.0L 4-cylinder (1998cc):
OEM Filter: Mazda G6Y014302P1
Wix Filter: 51357-EA
• 2.0L 4-cylinder (1998cc Diesel):
OEM Filter: Mazda RFY6-14-302
Wix Filter: 51324-EA
• 2.0L 4-cylinder (1998cc):
OEM Filter: Mazda RFY6-14-302
Wix Filter: 51357-EA
How often should I change the oil in my 1984 Mazda 626?
For modern models running full synthetic oil, oil change intervals are typically every 7,500 to 10,000 miles. However, for older Mazda 626 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 (2.0L 4-cylinder), you should change your oil at least once a year even if you don’t reach the mileage limit.