Mixing different Mobil 1 oils

OK... I don't think this question has been answered...

I just purchased oil for my next oil change. Due to economics, I purchased:

• One 5-qt jug of Mobil 1 10w-30 "Extended Performance" Full Synthetic
• One 1-qt container of Mobil 1 10w-30 Full Synthetic (NOT Extended Performance)

I can't see anything different between the oils except for the "Extended Performance" oil says it will go 15k miles. I only plan to go 5k miles anyway.

My question is this... Is there any reason I can't mix these two oils? They're both Mobil 1, they're both Full Synthetic. It will be 5qts of Extended Performance, and .5 qts normal.

 

Honestly?
I think it's all the same oil - it's just marketing. They use that as a tool to see which 'marketing gimmicks' work best.

I remember a few years back when Excedrin started putting out the Migraine headache version. I compared the ingrediants and they were exactly the same. I asked a Pharmacist about it and even they said "it's the same pill"

 

Put the extended in last....that way the other stuff will drain first. Problem solved!

Yeah yeah yeah, I know.....

 

Thanks. That wouldn't surprise me at all.

I actually thought I'd do that. It makes sense to me. I figured I'd put the normal stuff in first, then let it settle while I changed the tailgate differential fluid, then put the extended stuff in.