straight-weight 20
is there a straight-weight 20 on the market that meets the requirements of 10W (cold cranking, pumping, etc. specs)
Sounds like Valvoline had one in the old days (refer to link below)
it maybe a very specific oil and not mass marketable!
why do I ask:
based on what i have learned on BITOG ... making a few assumptions here and please correct me if i am wrong:
my primitive conclusion:
if you live in a 10W climate and the manufacturer spec is xW-20 ... why not use straight 20 assuming that it has all other goodies and packages ...
some background info:
based on my recent vi and vii relationship thread, shannow showed some graphs and it made me think if straight a 20 can work in fair climates for the cars that are speced 0W-20 or 5W-20?
that led me to an old (1/6/2008) thread (ref below) which I didn't want to resurrect.
it got even better since I found straight 20 which could be 10W-20 ...
interesting read if you have time.
"20W20 Went in this afternoon" by G-MAN
20W20 Went in this afternoon by G-MAN
in case the link didn't work:
https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1059485&page=1
this old thread answered another one of my questions:
A straight 20 can be labeled as SAE 20W, SAE 20, or SAE 20w20.
is there a straight-weight 20 on the market that meets the requirements of 10W (cold cranking, pumping, etc. specs)
Sounds like Valvoline had one in the old days (refer to link below)
it maybe a very specific oil and not mass marketable!
why do I ask:
based on what i have learned on BITOG ... making a few assumptions here and please correct me if i am wrong:
- straight-weight oils have no VII.
- low viscosity straight-weight oils have a reasonable (good/high) VI.
- Less or no VII means less shearing which is a good quality.
my primitive conclusion:
if you live in a 10W climate and the manufacturer spec is xW-20 ... why not use straight 20 assuming that it has all other goodies and packages ...
some background info:
based on my recent vi and vii relationship thread, shannow showed some graphs and it made me think if straight a 20 can work in fair climates for the cars that are speced 0W-20 or 5W-20?
that led me to an old (1/6/2008) thread (ref below) which I didn't want to resurrect.
it got even better since I found straight 20 which could be 10W-20 ...
interesting read if you have time.
"20W20 Went in this afternoon" by G-MAN
20W20 Went in this afternoon by G-MAN
in case the link didn't work:
https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1059485&page=1
this old thread answered another one of my questions:
A straight 20 can be labeled as SAE 20W, SAE 20, or SAE 20w20.
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