2021 Mitsubishi Eclipse Cross Maintenance & Specs

Everything you need to maintain your 2021 Mitsubishi Eclipse Cross — oil specs, maintenance schedule, recalls, and more.

The 2021 Mitsubishi Eclipse Cross takes 0W-20 Full Synthetic with a total capacity of 4.5 quarts (filter included). Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.

Data last verified: May 3, 2026

OEM spec: API SP

Quick DIY Tips for the 2021 Mitsubishi Eclipse Cross

  • Always use 0W-20 Full Synthetic as specified by Mitsubishi — using the wrong viscosity can void your powertrain warranty.
  • Check the maintenance schedule below for your next service interval.

Oil

Viscosity
0W-20
Oil type
Full Synthetic
Capacity (with filter)
4.5 qt
Capacity (without filter)
4.2 qt
OEM notes: API SP

Filter options

No filter cross-references added yet.

Drain bolt & hardware

Drain bolt specs not yet added.

Fluid specifications

Transmission Fluid

Buy →
Type
Diamond ATF SP-III
Capacity
4 qt
Change interval
60,000 mi

Brake Fluid

Buy →
DOT type
DOT 3
Change interval
45,000 mi

Coolant

Buy →
Type
Long Life
Color
Green
Capacity
6.5 qt
Change interval
120,000 mi

Parts & specifications

Tires

Size
215/55R17
Front pressure
33 PSI
Rear pressure
33 PSI

Maintenance schedule

Select a mileage interval above to see scheduled maintenance items.

Estimated Current Value

Original MSRP

$30,000

Private Party Value

$13,680 – $15,120

Dealer Retail Value

$15,840 – $18,000

Trade-In Value

$12,240 – $13,680

Depreciation

52%

Estimated values assume average condition and mileage for vehicle age.

Source: estimated

Technical Service Bulletins18

Torque specifications

lug nut
80 ft-lbs / 108.5 Nm
spark plug
18 ft-lbs / 24.4 Nm

14mm thread, aluminum head

Save by doing it yourself

A shop typically charges $70–$140 for this service. Buy the parts yourself and save.

Shop Oil & Filters →

Shop Parts for the Mitsubishi Eclipse Cross

Find oil, filters, and maintenance parts for the 2021 Mitsubishi Eclipse Cross on Amazon.

Shop Parts →

Tools & supplies

Step-by-step guide

Detailed walkthrough with tips for first-timers.

Read guide →

How often to change oil

Intervals, severe service, and what your car needs.

Read guide →

Synthetic vs. conventional

Which oil type is right for your engine and budget.

Read guide →

Have info for this vehicle?

Help fellow owners — submit specs from your owner's manual.

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