2023 Subaru Ascent Oil Change: Specs & Service

Following the manufacturer’s published interval helps replace oil before its additive package and heat-carrying ability decline. The interval is based on mileage and time rather than how clean the oil looks. Mike Shaw Subaru can log the completed visit against the vehicle’s maintenance history.

• Engine oil change: every 6,000 miles
• Oil filter replacement: every 6,000 miles
• Service location: Thornton, Colorado

The service is designed around the maintenance needs of the 2023 Subaru Ascent. Replacing the filter removes the old filtration element while fresh oil restores the engine’s ability to carry heat and debris. The visit is completed at Mike Shaw Subaru in Thornton.

• Drain and refill with the manufacturer-specified oil grade
• Install a new oil filter
• Reset the oil-life monitor and check underhood fluids

Fresh oil supports the 2.4-liter engine’s lubrication and heat-management needs. Waiting for a visual change on the dipstick can allow the vehicle to pass its mileage-based maintenance interval. A scheduled visit at Mike Shaw Subaru helps keep the maintenance routine clear.

• Oil can degrade before it appears dirty
• Oil carries heat and debris through the engine
• Maintenance is scheduled by mileage and time

Drivers may also notice oil that looks dark or low on the dipstick, or a ticking or louder engine note at startup. These observations should be considered alongside the manufacturer’s 6,000-mile oil and filter interval. Schedule an appointment in Thornton when a reminder appears or the interval has been reached.

• Oil-change reminder light
• Dark or low oil on the dipstick
• Ticking or louder engine sound at startup

The engine uses regular unleaded fuel and is paired with an automatic continuously variable transmission. Its peak power is produced at 5,600 rpm, while peak torque arrives at 2,000 rpm. Oil service helps maintain the routine care schedule for this powertrain.

• Engine layout: Flat-4
• Power: 260 hp
• Torque: 277 lb-ft

Towing can place additional demands on an engine because the powertrain works harder and generates more heat under load. Staying current with the manufacturer’s 6,000-mile oil and filter interval is part of routine ownership. Mike Shaw Subaru can perform the scheduled oil service in Thornton.

• Maximum towing capacity: 5,000 pounds
• Engine displacement: 2,387 cc
• Oil and filter interval: every 6,000 miles

These figures represent the range across the model’s six trims rather than one single vehicle configuration. The 2023 Subaru Ascent uses regular unleaded fuel and has a 19.3-gallon fuel capacity. Mike Shaw Subaru serves Ascent drivers in Thornton and the surrounding Denver area.

• City fuel economy range: 19–20 MPG
• Highway fuel economy range: 25–26 MPG
• Fuel type: regular unleaded

Online scheduling is available through the dealership’s service appointment page. The visit covers the oil and filter replacement, oil-life monitor reset, and underhood fluid-level check. Call 720-724-9280 if you prefer to contact the service department directly.

• Dealer: Mike Shaw Subaru
• Address: 1650 W 104th Avenue, Thornton, CO 80234
• Schedule an appointment online

During service, the old oil is drained and replaced with the grade specified for the engine, and a new oil filter is installed. The oil-life monitor is reset after the work is completed, and underhood fluid levels are checked. Fresh oil helps carry engine heat and debris while the filter supports oil cleanliness during operation. Bring your 2023 Subaru Ascent to Mike Shaw Subaru in Thornton for an OEM-spec oil change — schedule service.

Drivers may notice an oil-change reminder light, mileage beyond the last service, dark or low oil on the dipstick, or a ticking or louder engine note at startup. Oil can lose its additive package and ability to carry heat and debris before it looks dirty, which is why the 6,000-mile interval matters. Booking the service gets the oil and filter replaced and the visit logged against the vehicle’s history. Schedule service or call 720-724-9280.

Colorado driving can include cold starts, stop-and-go traffic, and towing demands. Those conditions can affect how hard the engine works and reinforce the value of following the scheduled maintenance interval rather than waiting for oil to look dirty. For directions or appointment help, call 720-724-9280. You can also schedule an appointment online at Mike Shaw Subaru.