What engine oil is best for Accord V6? synthetic or regular? If synthetic then what brand, the same question goes for the regular oil?

Don't just say Joe-Blow oil is the best! I would like to know why some particular oil is the best.

NO

 

Castrol Synthetic oil
thats what i use. you'll feel the difference instantly

 

How about royal purple?

 

i'd go with albertsons 5w-30.

 

Said no B.S well I guess not everyone knows how to read, or in this case just does not know all the alphabet letters. Grow-up.

 

Royal Purple.

 

i routinely went 6K on dino oil and I routimely go 6K on dyno oil with the type S

 

how about searching...

the subject of oil and which is best is always going to return widely varying results.

Do some research on oil, read the threads that have already been discussed and make your decision from that.