Engine Oils

[albyjose]

Here is doubt that is bothering me for a long time.
Many years before hero honda stock oil was 20w40,right?Also TVS tru4 also was 20w40.Infact in the owners manual for apache 180,it is recommended to use 20w40,same in case of splendor.
But now both the manufactures changed their grade.Hero honda and TVS tru4 is now 10w30.
From what I know this oil is thinner than 20w40,ie will stick less to the walls of cylinder,hence higher engine wear rate at high temp.
Or the change is negligible?
I am using 10w30 stock oils on both bikes,apache 180,euro2 splendor.
Should I continue with this or change grade to 20w40?
Will changing to 20w40,will create cold start problems?

[psr]

Here is doubt that is bothering me for a long time.
Many years before hero honda stock oil was 20w40,right?Also TVS tru4 also was 20w40.Infact in the owners manual for apache 180,it is recommended to use 20w40,same in case of splendor.
But now both the manufactures changed their grade.Hero honda and TVS tru4 is now 10w30.
From what I know this oil is thinner than 20w40,ie will stick less to the walls of cylinder,hence higher engine wear rate at high temp.
Or the change is negligible?
I am using 10w30 stock oils on both bikes,apache 180,euro2 splendor.
Should I continue with this or change grade to 20w40?
Will changing to 20w40,will create cold start problems?

Even for HH Karizma the recommended oil is 20w40, but HH had shifted to 10w30...
The reason ,(MY GUESS) is to let the engine rev more freely and with reduction in oil drag , get slightly better FE.
A 20w40 oil in HH splendor or Apache will not cause harm, but will actually help to protect the engine better with a thicker film of oil.
Cold starts may become marginally difficult, with two or three cranks required for starting..In my ZMA I had not faced any difference except smoother engine with less heating..with a 20w40

[adityajohanan]

Hey people, I own an apache RTR 180, 6.5 k on the odo. Recommend oil is 10w30. I ride fast and rev up quite a bit. Can any of the experts here suggest me a perfect oil to use.?
Thanks a lot in advance

[krish2778]

Hey people, I own an apache RTR 180, 6.5 k on the odo. Recommend oil is 10w30. I ride fast and rev up quite a bit. Can any of the experts here suggest me a perfect oil to use.?
Thanks a lot in advance

Since high revving is involved, go for Fully Synthetic oil. Options are Mobil1 , Motul and Shell. But I do hear that the SS of Motul works best for apache
The only detailed one's i know are of of Motul, 5100 SS, 7100 10W40 or 15W50 , 300v

I guess, other members can chip in with the appropriate product range from Mobil1 and Shell.

Cheers
Ride Safe
Krishna

[albyjose]

Even for HH Karizma the recommended oil is 20w40, but HH had shifted to 10w30...
The reason ,(MY GUESS) is to let the engine rev more freely and with reduction in oil drag , get slightly better FE.
A 20w40 oil in HH splendor or Apache will not cause harm, but will actually help to protect the engine better with a thicker film of oil.
Cold starts may become marginally difficult, with two or three cranks required for starting..In my ZMA I had not faced any difference except smoother engine with less heating..with a 20w40

What about 15w40 and 10w40?With those the cold starts would not be an issue+thicker oil at high temp,right?
They too must work fine/better than 20w40?

[krish2778]

What about 15w40 and 10w40?With those the cold starts would not be an issue+thicker oil at high temp,right?
They too must work fine/better than 20w40?

15w40 and 10W40 will definitely assist in cold starts. But even having said that, 20W40 shouldn't a problem to the level of being bothered by cold starts.

Cheers
Ride Safe
Krishna

[psr]

What about 15w40 and 10w40?With those the cold starts would not be an issue+thicker oil at high temp,right?
They too must work fine/better than 20w40?

A 10w40 weight oil is an all round prefered oil...at cold temperatures it will give better start and warm up, and as temp rises behaves as a 40 weight oil at that temp...so is better in overall performance compared to 20w40 or 15w40...you may even get a marginal improvement on FE.

[s1d]

my take on why many manufacturers shifted to the thinner 10w30's was due to 'environmental' 'pollution' related reasons. but if you take a look at honda manual's (the oil chart) it will clearly point to a 10(20)w40 oil for our indian temperatures.
rightly said by psr, the best oil's for most small capacity bikes (upto around 200cc) is a minimum of 10(or 20)w40

[ashwinprakas]

I remember reading in some Honda service guide that the grade is changed from 20W40 to 10W30, to meet some international emission norms. And the CRF230 instruction manual changed grade around 2002~2006 from 20W40 oil to 10W40 grade oil. This was a long time back, so need to double check. IIRC there was also something regarding a shift is JASO rating.

[Touseef Ahmed Mohammed]

10w helps better in cold starts

[adityajohanan]

10w helps better in cold starts

Cold starts don't matter to much. Let that not be a deciding factor. An extra kick in a morning is totally worth extra protection to your engine. Saying that, 15wX is good enough for a cold start. no harm in going 10wX but your high temp weight of the oil must be good.

[krish2778]

Cold starts don't matter to much. Let that not be a deciding factor. An extra kick in a morning is totally worth extra protection to your engine. Saying that, 15wX is good enough for a cold start. no harm in going 10wX but your high temp weight of the oil must be good.

Indeed being so choosy about cold start and thdn you end up with a oil that can't handle high temprature.

Cheers
Ride safe
Krishna

[adityajohanan]

Indeed being so choosy about cold start and thdn you end up with a oil that can't handle high temprature.

Cheers
Ride safe
Krishna

Exactly man.!
That's like using a balloon instead of a c*ndom because it won't look awkward while buying. What about looking awkward in bed.? Leave alone the discomfort..

[sunilyo]

MOTUL FB UPDATE

Over several decades, MOTUL has consistently improved the performance of its motorcycle lubricants through development of its own unique type of ESTER, with the latest result being the introduction of Ester Core technology in 300V Factory Line 4T range.

The new 300V provides outstanding extreme pressure properties to protect highly loaded gearboxes while the clutch friction indexes have been optimized to improve life time and response of clutch discs in Road Racing and Off Road.

The new 7100 100% synthetic with Ester technology has three new viscosity grades (5W40, 10W50 and 15W50) in response to the latest manufacturers’ recommendations from BMW, KTM, APRILIA, and MV AGUSTA.

The new range would be available in India by April / May 2013.

[pcgamer]

What is the drain interval for Shell AX7? I have been using it in my RTR160 since 3 months/2200km. Is it due for a change or can it be pushed further?