Should I use synthetic oil in my 2018 Focus SEL 4 door hatchback 2.0 L? How often does synthetic have to be changed?
Yes, and you'll probably find that's what the manufacturer specifies. Change oil and filter every 5000 miles.
I have a similar situation
Camry 2015 never used full synthetic oil
Only mineral oil and synthetic blend
Can i use fully synthetic oil without having problems like leaks?
The km is 213,000 km wich is around 130k miles
please use the search
https://carkiller.com/scottykilmer/qa/is-synthetic-5w-30-safe/
https://carkiller.com/scottykilmer/qa/factory-oil-change-intervals/
https://carkiller.com/scottykilmer/qa/full-synthetic-or-synthetic-blend-oil/
Scotty also has videos about it
https://www.youtube.com/watch?v=mPXg-N28rZs&t=1275s
Thanks
