QUOTE(lhwj @ Jul 13 2012, 10:33 PM)
I've been using 15w50 all these while

QUOTE(lhwj @ Jul 13 2012, 11:25 PM)
Proof that engine oil viscosity is not an important factor in FC

hi & Good Morning!!

Re recent discussion (numerous times b4 this, too!) over suitable SAE EO grades, my fantastc hallucination here...agin...haha!
IMHO most users are kinda confused over "monograde" (ole skool) & "multigrade" (new skool) EOs.
A monograde SAE 30 only lubricates & protects as a single grade oil BUT DOES NOT provide suitable lube nor protect at less harsher/less demanding nor more hasher conditions.
A multigrade SAE 30 (as the name suggests) provides such characteristics UP TO max SAE 30 conditions
So similarly a multigrade SAE 50 E0 wld provide coverage for conditions up2 max SAE 50 requirements ie it wld do the same as if yu had SAE 40, 30, 20, etc depending on engine condition requirements
Multigrade EOs provide general lube & protection over a wide range of requirements.
Thus, me feel (IINM), no one shld hv any fear of using any multigrade EOs as long as it covers engine requirements.

If our Saga when driven @ a particular time needs SAE 30 (eg when cold), it's available.
If our Saga @that pt in time cos one thrashes it and thus need higher protection like with SAE 50, it's ALSO available!!
An example : A 0W40 Multigrade covers grades fr SAE 0 to 40...
Similarly 10W50 covers SAE 10 to SAE 50.
Now me am sober....

Added on July 14, 2012, 9:44 amps. As alwaz...in all things in Life...theory & facts aside, all ends up a matter of personal belief, choice & decision.
Like often quoted, watever works for yu...Wat make yu happy!

Added on July 14, 2012, 9:47 amQUOTE(zeone @ Jul 14 2012, 09:38 AM)
hi & Good Morning!!

Re recent discussion (numerous times b4 this, too!) over suitable SAE EO grades, my fantastc hallucination here...agin...haha!
IMHO most users are kinda confused over "monograde" (ole skool) & "multigrade" (new skool) EOs.
A monograde SAE 30 only lubricates & protects as a single grade oil BUT DOES NOT provide suitable lube nor protect at less harsher/less demanding nor more hasher conditions.
A multigrade SAE 30 (as the name suggests) provides such characteristics UP TO max SAE 30 conditions
So similarly a multigrade SAE 50 E0 wld provide coverage for conditions up2 max SAE 50 requirements ie it wld do the same as if yu had SAE 40, 30, 20, etc depending on engine condition requirements
Multigrade EOs provide general lube & protection over a wide range of requirements.
Thus, me feel (IINM), no one shld hv any fear of using any multigrade EOs as long as it covers engine requirements.
If our Saga when driven @ a particular time needs SAE 30 (eg when cold), it's available.
If our Saga @that pt in time cos one thrashes it and thus need higher protection like with SAE 50, it's ALSO available!!
An example : A 0W40 Multigrade covers grades fr SAE 0 to 40...
Similarly 10W50 covers SAE 10 to SAE 50.
Now me am sober....
Added on July 14, 2012, 9:44 amps. As alwaz...in all things in Life...theory & facts aside, all ends up a matter of personal belief, choice & decision.
Like often quoted, watever works for yu...Wat make yu happy!
pps. Juz ask ourselves 1 simple question:
Why was the Campro engine ORIGINALLY filled with SAE 20W50 EO @ factory/Engine Assembly Plant?
And everyone trusted that oil to protect our Brand New engines for 1k+ Km b4 any oil changes?
This post has been edited by zeone: Jul 14 2012, 09:51 AM