The most suitable upgrade option for a 2021 Subaru* Crosstrek* oil type is either AMSOIL’S OE 0W-20 Synthetic Motor Oil or their “SS” 0W-20 Synthetic Motor Oil, although this is dependent on the engine that you have. 4.4 quarts (with oil filter) of AMSOIL’s high performance “SS” 0W-20 100% Synthetic Motor Oil is recommended for the more potent 2.5L 4 -cylinder FB25D engine.
![AMSOIL Signature Series 0W-20.](https://bestengineoilintheworld.com/wp-content/uploads/2022/01/amsoil-signature-series-0w20.jpg)
AMSOIL’s OE 0W-20 Synthetic Motor Oil (4.6 quarts with oil filter) is a great replacement for your 2.0L 4 -cylinder engine’s conventional motor oil. By changing to 100% synthetic motor oils of world-class quality, you give your engine a genuine chance to combat deposits and sludge. Both of these premium motor lubricants make use of ingredients of the highest quality, which enable them to provide better protection against wear. Both engine oils have a special chemistry that prevents pistons from being damaged by low-speed pre-ignition (LSPI.)
![OE 0W-20 Synthetic Motor Oil.](https://bestengineoilintheworld.com/wp-content/uploads/2023/02/oe-0w20.jpg)
Installing AMSOIL’s #EA15K13-EA Oil Filter will give you protection and performance that is on par with that offered by the engine oils previously mentioned. Since it is able to remove a greater number of contaminants than other types of filters, this heavy-duty oil filter may help to make an engine last longer.
![EA15K13-EA Oil Filter.](https://bestengineoilintheworld.com/wp-content/uploads/2023/02/ea15k13-oil-filter.jpg)
The Crosstrek* Sport and Crosstrek* Limited versions of 2021 are powered by a 2.5-liter Subaru* Boxer* motor as standard equipment. The amount of power that is accessible has been increased thanks to the installation of this engine, which generates 182 horsepower and 176 foot-pounds of torque. This powerplant is matched with a CVT, which stands for continuously variable transmission.
![AMSOIL pc banner.](https://bestengineoilintheworld.com/wp-content/uploads/2022/01/amsoil-preferred-customer-banner-1024x536.jpg)
The EPA estimates that the Sport and Limited trim levels will achieve a combined 27 miles per gallon in the city and 34 miles per gallon on the highway when equipped with this combination.
The economical 2.0-liter 4-cylinder Boxer* motor that generates 152 horsepower and 145 foot-pounds of torque will continue to be used in both the basic model and the premium trim variant of the 2021 Subaru* Crosstrek*.
![AMSOIL dealer banner.](https://bestengineoilintheworld.com/wp-content/uploads/2023/04/DEALER_RECRUITING_3_1200x628-banner-1024x536.jpg)
Standard on the Basic and Premium trims is either a 6-speed manual gearbox or an optional continuously variable transmission. The EPA has given these CVT-equipped cars a combined mileage rating of 30 mpg, with 28 mpg in the city and 33 mpg on the highway as their estimated individual ratings.
![Engine Maintenance banner.](https://bestengineoilintheworld.com/wp-content/uploads/2022/01/engine-maintenance-banner.jpeg)
Models with a 6-speed manual transmission are rated to get 22 mpg in the city, 29 mpg on the highway, and 25 mpg overall.
If you’ve made it this far, we appreciate your interest in our 2021 Subaru* Crosstrek* Oil Type blog post. If you are interested in any other aspect of vehicles, please tell us in the comment section below.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.