Welcome Guest ( Log In | Register )

Bump Topic Topic Closed RSS Feed

Outline · [ Standard ] · Linear+

 monograde engine oil? sae 40?, suitable to use?

views
     
TSconan1
post Feb 16 2013, 12:24 PM, updated 13y ago

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
user posted image

just bought this mineral oil at petrol station...

want to use this at waja mitsu engine..

izzit suitable to use due to monograde? hmm.gif

well im using it together with bardhal engine treatment..

what is the advantage or disadvantage use monograde oil in malaysian road environment?

tq smile.gif
TSconan1
post Feb 16 2013, 04:54 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(Daniel John @ Feb 16 2013, 03:16 PM)
good to use on daily drive car n keep them change every 5k km...
*
this is the difference between mono and multigrade oil found in google

The main difference between these two types of engine oil is their fluidity at cold start. Multigrades, such as 10W/40, 15W/40, 5W/30, etc., flow more easily and are therefore pumped round to the critical components much more quickly. Historically, the 'W' stands for winter. As well as this important feature, multigrades also have to provide a protective oil film at higher temperatures when the engine has warmed up. Monogrades on the other hand provide a very good oil film at working temperatures, but their cold start properties are poor. To overcome this it used to be the practice to put a thin monograde, such as a SAE 30, in the engine during the winter and a heavier monograde, such as a SAE 50.

soo the overall summary i understand for monograde and multigrade engine oil is

the coldstart of the engine right? soo monograde engine oil not so good for cold start.. hmm.gif
TSconan1
post Feb 16 2013, 05:20 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(Daniel John @ Feb 16 2013, 05:15 PM)
yups! that is simple explanation...the W in multigrade doesnt effect us so much...
*
tq smile.gif
can i know why the W doesnt effect much?
is this because Malaysia is averagely a hot climate through out the year?

TSconan1
post Feb 16 2013, 08:08 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(6UE5T @ Feb 16 2013, 05:46 PM)
Even though we live in hot climate, the thinner viscosity property during cold start of multi grade oil should still count. Cuz the oil will still flow faster compared to single grade during initial start up to it should offer better protection during that first few minutes before the engine reach full/normal operating temp. If it makes no difference, there'll be mostly single grade oil used here, but instead it's the other way around.
I guess if it's for old cheap car engine and don't really care much about the lifetime of it, then just use the single grade. Or if you just not going to use the car for long or planning to sell it, then just use that single grade to save money. Otherwise, still better to use multigrade.
*
thnx for opinion and explaination..the car is waja..it is almost 10 year old car..im not using solely this oil..im using it together
with bardhal engine treatment.. smile.gif ..what i notice, the engine produce a bit less noise than before.. smile.gif ..but you got ur point there..im quite
agree with that.. smile.gif


QUOTE(Daniel John @ Feb 16 2013, 06:02 PM)
i believe all cars has the this oil pump to pump the engine oil before start the engine...n i agree about thinner oil flow better...

the single grade doesnt mean makes no difference but those W doesnt mean much to our climate...n they are here becos of market vs pricing = profit...

how about SAE 40 vs 0w40 in general?
*
yerpp..somehow i thinking about this...oil pump suppose to pump the engine oil right..hmm hmm.gif ...you have point there..
other than that..this oil quite cheap...and the most important..it is original that i bought from petrol station.. smile.gif

im also thinking...so which cheapest mineral engine oil better? sae 40 or 20w50? but i guess 20w50 quite heavy right? hmm.gif
TSconan1
post Feb 16 2013, 11:14 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(SKY233 @ Feb 16 2013, 08:50 PM)
delo is for diesel right? hmm.gif cannot comment much about it..not sure...however i do heard the caltex oil is quite good.. smile.gif

but this petronas mach 5 sae 40 can be use both petrol and diesel engine..

http://www.mymesra.com.my/microsite/lubric...ger_Mach5SF.pdf
TSconan1
post Feb 16 2013, 11:20 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(Deja Vu @ Feb 16 2013, 09:08 PM)
My dads 16yr ol work horse used to run on C.GTX 20w50. Noticed much smoother idling after starting n easier pick up after switching to Magnatec 20w40.
*
i used to buy castrol 20w50 before...no problem for the engine...but the price is keep increasing..
and also it is kinda hard to know the originality of the engine oil...i scared for fake product..
the castrol product that i can 80% trust the originality is from supermarket store..such as carrefour/tesco/giant/etc...big store...
so i prefer to buy from petrol station smile.gif
TSconan1
post Feb 16 2013, 11:31 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(Daniel John @ Feb 16 2013, 08:46 PM)
of cos its suitable to use here...the only cons with this oil is its heavy n not performance oriented...so can safely say good for daily drive who rarely drive more than 3.5k rpm for example...

they are many cheap mineral oil but those with good brand are good...please avoid those "new name' brand...cheapest branded mineral oil i believe less than rm50

20w50 - car will feel sluggish eventho i never tried tat before...but mostly are...
actually this is kinda old argument actually..
*
no problem with the oil..just changed it today nod.gif

can't say much about this oil...seems all normal..no sluggish...performance not soo much difference..coz all this while using mineral oil to maintain it..

before this using 15w40 castrol...but i can tell..this oil..abit decrease in perfomance..just abit...but not much noticeable..my experience smile.gif

for rm50 and genuine oil from petronas..cannot complain much about it seems it is a cheap mineral monograde oil.. smile.gif

after all..the car is nearly 10 years old..an old car..but serve me well..just keep the maintenance regularly.. smile.gif
TSconan1
post Feb 17 2013, 11:15 AM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(SleeplessEyes @ Feb 17 2013, 12:56 AM)
Ive used so far

1) shell rimula r1 sae 40 (diesel engine oil with api SF)
2) petronas motolub (not mach 5) sae 40
3) caltex delo 400 (diesel engine oil with api SL)

On my:
1) nissan sunnY
2) proton wira 1.3gli.

And had no problems.
In fact if one were to look at the specifications of the SAE 40, and compare the "Kinematic Viscosity cst" with a multigrade, it is actually similar to a 20w40.

And furthermore i prefer to go for those diesel engine oil, because their TBN is usually 2x higher than normal petrol mineral oil, and yet it is so much cheaper.

Monograde benefits is that it doesnt have any viscosity improvers (go google it for more info) to break down , hence it lasts longer than multigrades, althoigh argueably considered low-tech, old fashion, etc on the API ratings.
*
thnx for review..wow..using diesel engine oil to lubricate petrol engine? i heard about it...how long has u done this?
im sure the diesel engine oil much more cheaper...more cheap if u buy bulk or those in barrels..
however im not have confidence yet to use diesel engine oil... biggrin.gif
the least i will choose is the mineral engine oil that stated at the back that can be use both petrol and diesel engine laugh.gif


TSconan1
post Feb 17 2013, 05:36 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(SleeplessEyes @ Feb 17 2013, 02:45 PM)
Yes i have faith in the correct diesel engine oil lubricating my petrol engine. Read below and ill explain why.

Most diesel oil wont tell you straight on its label, that it is "suitable for petrol engine" . It wont.
Even the Shell Rimula R1 i poured in, Doesnt clearly states it.
Otherwise they wont be able to sell their higher priced, petronas synthium/mach 5 oil to normal consumers.

The keyword , when looking for compatibility of the diesel engine lubricant for gasoline engine,
Is by the API S grade. I.e API SE,SF, SN, etc., at the back of the bottle.
If you dont see any S grade, its clearly incompatible for the gasoline engine.
*
thnx for clarification..now i understand... nod.gif
u buy from barrel ar? much more cheaper then.. brows.gif
TSconan1
post Feb 17 2013, 08:19 PM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(voscar @ Feb 17 2013, 05:37 PM)
U sure u want to use something older than API SJ (API SF in your petronas) on your waja? I think in long run it would damage your catalytic converter due to high zinc and phosphorus.
*
ya...just read about API rating..hmm..you got ur point there..tqq


http://www.pqiamerica.com/apiserviceclass.htm

nevermind smile.gif ..already using it now..im using it with bardhal engine treatment..hope have some sort of protection from it biggrin.gif
not wasting my money by replace it..i will wait for the interval smile.gif
TSconan1
post Feb 18 2013, 10:08 AM

Getting Started
**
Junior Member
224 posts

Joined: Jan 2011
QUOTE(SleeplessEyes @ Feb 18 2013, 12:09 AM)
Which one is more important for lifespan issue.
The engine, or the catalytic converter? If I may say, of course its the engine.

In US,yes, the Catatylic converter is important to pass the emissions test,
but in Malaysia, Puspakom dont give a shit about it.

That's why the newer API poses a more serious issue for older engines due to reduced zinc level., just to protect the cat, at the expense of engine life.
*
QUOTE(sarjantulang @ Feb 18 2013, 09:55 AM)
yes very2 true...

also, only 1% of cases involving cat damage cause of using API SG and below...

i've been using HDEO for 4 years now...HDEO is known for having high ZDDP....

sarjantulang
*
thnx for opinion smile.gif ..so in this case, it is rarely caused cat damage due to high in ZDDP? hmm.gif

Topic ClosedOptions
 

Change to:
| Lo-Fi Version
0.0197sec    0.52    7 queries    GZIP Disabled
Time is now: 14th December 2025 - 09:29 AM