Originally Posted By: dan3952
Would anybody with a SOHC Honda 4 cylinder like to chime in with their experience? I'm burning a quart in under 2000 km with Synpower right now and I'm not too happy about that. M1 is sitting on my shelf waiting for next fill, but I might just leave it there at this point. I've burned a lot with Castrol GTX or the Syntec Blend in the past so I'd never tried their full synthetic either.
I have a 2007 Civic with the 1.8 and 5 speed MT. It's consumed oil since new, whatever I ran, to differing amounts. I've run Motorcraft, GTX, Exxon SuperFlo, PYB, Chevron Supreme. I've never run synthetic in it. This current OCI with Supreme it's burned more than it ever has before -- I've added 2 full quarts. Changing that out today for one more interval of the same stuff and we'll see if it improves. Previous fills I've calculated that it tends to burn about a quart per 4-5k miles "normally". By the OLM I do 6-7k mile OCIs.
Mine gets a fair amount of high RPM and high vacuum driving which I thought might explain some of it, but then my wife's Mazda3 with the 2.3 and 5 speed MT gets the same driving patterns and does not seem to burn oil very much at all.