A 5w30 is NOT a 30wt that meets 5w cold specs, nor is it a 5w that meets 30wt hot specs. It is simply an oil that meets the specs for 30wt at 100C and the cold cranking and cold pumping specs for a 5w at -30C.quote:
Originally posted by Gary Allan:
Well, it stands for a 30 weight oil that meets 5w cold specs.
Only on the part of those who are confused.quote:
Originally posted by Auto-Union:
Much confusion on this thread.
And that would be you.quote:
Originally posted by G-Man II:
Only on the part of those who are confused.quote:
Originally posted by Auto-Union:
Much confusion on this thread.
Nope, it means this.quote:
Originally posted by racer12306:
so can it be concluded that an xxwyy oil has the cold flow properties of an xx weight oil and then performs like a yy weight oil?
quote:
Originally posted by Blue99:
After following the link to the Neon forum, I see the Neon guys are linking back this Bitog thread.
So here's my definition:
A multi-viscosity oil is less thick than the equivalent straight grade at very cold temperatures.
The W designation in a multi-viscosity oil grade stands for Winter and is the cold temp flow measured in centipoise, at a specific sub-zero temperature.
A 0W is 6200 max cP at -35C
5W is 6600 max cP at -30C
10W is 7000 max cP at -25C
A SAE "10 weight" or "5 weight" category does not exist.
The statement "A 5W-30 flows like a 5W oil at -30C(-22F)" is true since both 5W-30 and 5W have the same 6600 max cP @ -30C limit. Do not read 5W as a 5 weight oil - it is 5 "dub ya" and indicates a cold temp flow limit.
The SAE J300 Viscosity Chart
Seriously, anyone questioning even your knowledge needs a reality check.quote:
Originally posted by Gary Allan:
(visions of Harrison Ford as Dekert in Blade Runner as he told Rachael that she was a replicant and she was in denial)
Okay ..you're right! Bad joke ..no really ..bad joke. Go home..no really.
On many things, yes; on the topic of this thread, no.quote:
Originally posted by BlazerLT:
And that would be you.quote:
Originally posted by G-Man II:
Only on the part of those who are confused.quote:
Originally posted by Auto-Union:
Much confusion on this thread.
When you question the information from Gary Allen, that is where you lost it.quote:
Originally posted by G-Man II:
On many things, yes; on the topic of this thread, no.quote:
Originally posted by BlazerLT:
And that would be you.quote:
Originally posted by G-Man II:
Only on the part of those who are confused.quote:
Originally posted by Auto-Union:
Much confusion on this thread.
(quoted for reference)quote:
Originally posted by racer12306:
so can it be concluded that an xxwyy oil has the cold flow properties of an xx weight oil and then performs like a yy weight oil?
quote:
Originally posted by Gary Allan:
Well, BLT, G-man has the goods on oil characteristics and properties....probably hands down. The only thing that is in question is whether there is need for semantics and fine line proper nomenclature when you know darn well what someone is talking about or referring to. It just stiffles the discussion for no good reason. If you can't step down and talk to the slimes like a civil peer ..stay in your lofty perch of some self appointed heirarchy and stay out of it.
Turds by any other name still smell the same
Where did I question Gary's information?quote:
Originally posted by BlazerLT:
When you question the information from Gary Allen, that is where you lost it.