Engine oil Castrol or OEM Subaru

OEM Subaru Engine oil

Check all your fluids ASAP. If any are low, top off as per the manual and monitor closely before you leave to make sure it's not leaking or consuming anything. Definitely bring extra oil, 1 or 2 quarts would be pleanty, and some paper towels and rubber gloves help too.

Pros: bring extra oil
Cons: engine drinks oil
Vehicle: Subaru
Mileage: 3500 km
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OEM Subaru Engine oil

Should be fine, but CHECK THE OIL FREQUENTLY. This series of engines is notorious for oil consumption problems, which may not appear at all when doing short trips, but suddenly it's drinking 1qt or more per 1000 miles on the highway.

Pros: check oil frequently
Cons: oil consumption problems
Mileage: 1000 km
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Castrol Engine oil

I use the Castrol Edge oil. I was doing 7500 mile oil changes and on this last one bumped that up to 10k miles. I sent out the oil for analysis to decide if I want to step up to an even larger interval. The comments left by the tester: 'Your CX5's engine looks good in analysis! Your results look really good by comparison after the 10,000 miles. Metals are all within good wear ranges, with iron even showing below-average steel wear. Nice! Titanium is just an additive in Castrol. Very nice! Go 12k miles next fill.' I will heed their advice and go 12,000 miles on this next one.

Pros: engine looks good, good wear ranges, below-average steel wear, recommended 12k miles
Vehicle: Mazda
Mileage: 16093 km
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