- Apr 29, 2022
Here’s my results for the Subaru Outback Limited 2.5L Direct Injection NA engine. It had roughly 4800-4900 miles at sampling. Amsoil Signature 0w-20/ Wix filter. Oil was changed last September and sampled this March. This vehicle is used for roughly 4 miles daily commute round trip in Minnesota. I’m quite surprised at the fuel dilution percentage. During the very cold winter days remote start is used and we try to limit it to 5 minutes or less. I’ll be changing the oil soon and resampling in 3k miles. I’m thinking it has to do with the overall boxer engine design. Nonetheless the oil viscosity held up great.