Which would you choose? 12k mile OCI with a 100% synthetic or 5k mile OCI with conventional

Joined
Dec 4, 2013
Messages
641
Location
Maryland
I'd like to know what members of the BITOG forum would choose for their vehicles. (Let's assume that cost is equal.)

A. 12,000 mile OCI with high-quality 100% synthetic oil (such as Amsoil signature series, which is rated at 25k miles) + very high quality filter.
B. 5,000 mile OCI with generic conventional oil + average quality (low cost) filter.

All Highway driving, then A.

Short trip driving, then B.

What I would choose and what I actually do are 2 separate things. At this time in my life I am doing short trip driving, 1st was on PP and PU, and now I am doing Mobil 1 ESP.
 
Joined
Apr 12, 2009
Messages
2,415
Location
Maryland
If I had no other option than the 12K or the 5K interval I would choose the 5K. Because I have a GDI which gets the oil filthy and because all conventional oils meet spec for my engine.
 
Top