Mixing oils

Status
Not open for further replies.
Joined
Jul 16, 2003
Messages
783
Location
Palouse WA
I got blessed with changing the oil in my Girlfriends mothers car from now on and it takes 3 quarts of oil So I added 2 quarts of Mobil drive clean 5w-30 and 1 quart of Mobil 1 5w-30.

What do you guys think? Am I crazy?
Will do a UOA on it.

Ken
 
What you did certainly isn't crazy, but why not go 100% M1 and go longer oil change intervals? You plan to do a UOA anyway so you could safely monitor an extended interval.
 
I'm surprised nobody else asked this yet but what kind of car only takes 3 quarts of oil? Is it one of those Chevy Sprints/Pontiac Fireflys/Suzuki Swifts with the 1.0L engine perhaps?
 
97 Toyota Tercell takes 2.7 qts of oil
dunno.gif

+ the filter.
Why not go all out........ #1 Cost if all goes well next run will be all Mobil 1 for this car.

Ken
 
Yep. My 2001 nissan sentra 1.8L QG18DE takes just under 3qts as well
shocked.gif
!! Just started running M1 10w-30 on it.
Ken42- FWIW, I'm doing the same kind of mix on my 2002 isuzu rodeo 3.2L, 3qts mobil drive clean, 2qts M1, all 10w-30. Will do a UOA on this after awhile.
Joel
 
Do the UOAs for these engines running so few quarts show that they really beat up the oil?
 
Do the math guys....these small engines have a better sump capacity/engine size ratio than the big V8......example above equals 1.6 qrts/ltr versus 1.05 qrts/ltr in an LS1
Shouldn't beat the oil at all. I guess the engineers had it all figured out.
Rick
 
Status
Not open for further replies.
Back
Top