I use to burn 1 litre every 300-400km, but after replacing my pvc valve for like 10bucks and switching to valvoline synpower, I go the full 5000km without having to add any oil.

 

I use Castrol 10W-30 Synthetic with a little bit of Lucas Oil Stabilizer which helps prevent oil consumption and helps with TCT.

 

i was burning oil everytime i hit vtec with mobile 1, a tad less with amsoil, and non with castrol edge

 

Kinda common for ap1
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Glad mine is abnormal. I run either Mobil 1 or Pennzoil Synthetic 10w-30. I change oil between 6K and 8K miles. Rarely add more than 1/2 quart between changes. Car has been heavily autocrossed since new.

 

which is better pennzoil high mileage or castrol ?

 

if you're burning alot of oil just run regular oil, not synthetic. synthetic oil is very thin, and burns faster. run regular 10w30, it won't hurt the motor and will burn alot less. i used to run it in my high compression integra type r when it started to burn synthetic alot.

 

put whatever you want in there. They are both good, run it see if it burns less if not then swap to something else. Every motor is different so there is no correct answer.