I'm officially a 20wt convert

[Robin]

Confirm FC and response see improvement. Such a big jump, it is like SOC from FBO to PT kit.

 

exactly ...

[Genie47]

What car is that? So far only GM vehicles have refused to jump into the 20wt bandwagon. I'm using a GM car and use 5W30.

[Cyberet]

hehe, i'm waiting to finish my last few bottles of M1 10w-30 that i grab from giant many moons ago.. then it'll be 5w20 all the way.. anyway now doing a blend as i couldn't wait 2quarts of 5w20, 1 quart of 10w-30

[Orixy]

Mit Lancer service manual also lists 30 as lowest visco allowed...

[Gadgeter]

I have also switched from 40wt to 20wt since Saturday even tot I'm only at 7K.

I wonder how much improvement will I expect from the FC.

 

How's your FC after the switch?

[Ivanpaseo]

hi all i a new member, just change to royal purple 5w20 today from shell mineral... felt that engine note softer and much easier to rev... but i hardly hear people in mcf mention about royal purple oil ... will start monitoring my fc see how much improvement from the jump!

[Trex101]

A rule of thumb from a 50wt to 20wt are 6% engine efficiency gain, after minus the transmission losses, you should be expecting a gain of between around 3-4%.

 

Results can varies according to type of traffic condition, generally mostly highway type will gain more improvement then city driving.

[Gadgeter]

hi there,

 

Welcome to MCF. We hope you enjoy your stay with us.

 

For ease of posting, do refer to our guideline before you proceed.

 

Back to your thread. Perhaps RP is not so popular here.

[Cyberet]

hehe.. now got schaeffer's.. so maybe rp not so popular ever since

[Ivanpaseo]

To wat i noe schaeffer is a semi syn oil or should i say semi bland? thanks for the welcome haha...

Edited March 20, 2007 by Ivanpaseo

[Sambuca]

for those who just got their new cars and want to protect the engine,

better to stick with higher rating oils first.

w20 is USUALLY meant for cars who has at least done their 10k servicing

 

the car might need ard 20kk to fully run in and a lower rating oil provides less protection for the engine.

[Garlic]

Thats a common myth.

[Cyberet]

hmm.. some cars comes with 20wt oil as factory fill.. even though the factory know the car is destined for singapore

[Cyberet]

i think now its a syn, that was before..

anyway theres been arguement about RP being not a proper syn too

[Sambuca]

guess there are different schools of thought.

 

some believe to the running in their car slower using higher oil rating

 

others felt that that it not necessary. pouring in 5w20 after their 1k servicing.

[Ferrari7]

Today's engines are manufactured with greater precision and tighter tolerances than ever before. Try W20 and you will never go back to thick oils.

[Pinic2003]

Some use W20 for flushing.

Are they the same?

[Pinic2003]

A rule of thumb from a 50wt to 20wt are 6% engine efficiency gain, after minus the transmission losses, you should be expecting a gain of between around 3-4%.

 

Results can varies according to type of traffic condition, generally mostly highway type will gain more improvement then city driving.

 

20wt gain 6% - minus the transmission losses gain 3%

30wt gain 4% - minus the transmission losses gain 2%

40wt gain 2% - minus the transmission losses gain 1%

 

The saving is small individual user.

However, it will be a big saving for big country like USA and Japan.