Subaru Forester Problems

As the car is running normally, with no other signs of a problem it’s most likely to be condensation in the exhaust system. If so it’s nothing to worry about. Changing the fuel won’t make any difference.

There sounds like an issue with the cruise control rather than the engine. It could be a computer or sensor malfunction. Have a mechanic check it.

Try a Toyota RAV4, Mazda CX-5, Kia Sportage, or Subaru Forester. Any of them would be good choices.

To start you need to have the filter cleaned out by what it called a manual regeneration. It’s not a warranty issue. Take it to a Subaru dealer and get a quote from them. The reason the light has come on is that the car hasn’t been driven in a way that ensures the regeneration takes place automatically. It could be because of the way you drive it, or the way previous owners have driven it. When you talk to the Subaru dealer about regenerating the filter also ask about the way to drive it so the regeneration happens automatically.

It’s possibly worn out and in need of replacing.

Switching the transmission and ECU clearly hasn’t fixed the problem, so look at sensors in the system, the wiring harness, and connections. I would suggest you take it to a Subaru dealer or an auto transmission and have them check it for you.

The cargo cover will certainly help to restrain the luggage in the event of a crash, but it probably wouldn’t stop it altogether in a major altercation. A proper cargo barrier behind the rear seat would be more effective.

All engines use oil, some use more than others, and you are expected to top them up if the level drops to the low mark. There is no rule that says a car will get from one service to the next without adding some oil, and with the extended service intervals in play today it's more likely that you will have to add oil at some point before reaching the next service. Subaru tells you it's ok, I would accept their advice.