Parts for your 2016 Subaru Exiga-Coolant

2016 Subaru Exiga coolant — what it does and how to look after it

Coolant is absolutely relevant to the 2016 Subaru Exiga. Subaru’s technical literature — including the Owner’s Manual for the 2016 model and the FB‑series engine Service Manual — specifies engine coolant (Subaru Super Coolant, blue, long‑life) as a required fluid for the cooling system. Genuine Subaru documentation notes extended service intervals and the need to avoid mixing coolant types.

For a 2016 Subaru Exiga, coolant isn’t just coloured water. It keeps the flat‑four running at the right temperature, resists boiling and freezing, and protects the alloy block, heads, radiator and heater core from corrosion. It also lubricates the water pump and helps the cabin heater do its job on a cold morning. That’s why sticking with the correct Subaru‑approved blue long‑life coolant matters — it’s blended to work with the Exiga’s materials and seals.

As part of regular servicing, they should:

• Check the expansion tank level when the engine is cold and top up only with the correct premixed blue long‑life coolant (or the exact concentrate plus demineralised water as specified).
• Avoid mixing coolant colours or types — combining blue long‑life with generic green can shorten life and reduce corrosion protection.
• Inspect hoses, clamps, the radiator cap and around the water pump for seepage, crusty deposits or swelling.
• Bleed air properly after any cooling system work, Subaru’s layout is sensitive to air pockets.
• Keep the fins on the radiator and AC condenser free of debris for good airflow.

On coolant replacement intervals, Subaru’s factory fill blue “Super Coolant” is typically rated up to around 11 years/220,000 km for the first change, then about every 6 years/120,000 km thereafter, provided the correct product is used. Vehicles that were previously serviced with conventional green coolant may need much shorter intervals — check the service history and go by the product’s specification. If there’s a sweet smell from under the bonnet, unexplained coolant loss, a rising temp gauge, discoloured fluid, or the heater goes cold at idle, it’s time to book it in.

One last tip: don’t open the cap when hot, and don’t chase overheating with plain water — that dilutes inhibitors and can invite corrosion. Use the right stuff, at the right time, and the Exiga’s boxer will stay happy for the long haul across Aussie and Kiwi roads.

• What coolant type does a 2016 Subaru Exiga use?
  The 2016 Exiga is designed for Subaru Super Coolant (blue), a long‑life, premixed coolant formulated for FB‑series engines. It’s phosphate‑based, silicate‑free and made to protect aluminium components. If using concentrate, follow Subaru’s ratio with demineralised water.
• How often should the coolant be replaced?
  With the genuine blue long‑life coolant, the first change is typically around 11 years/220,000 km, then every 6 years/120,000 km. If the car has been on conventional green coolant, the interval is much shorter — follow the product label and the owner’s manual.
• Can different coolant colours be mixed?
  Best not. Mixing blue long‑life with generic green can reduce corrosion protection and service life. If the wrong type has been added, arrange a proper drain, flush and refill with the specified coolant.