Engine Oils

[Honda_abhi]

Re: Engine Oils

I would not recommend using oil grades that are not mentioned in the manual. Every manufacturer designs its engines as per its needs and selects the oil grade to compliment it. If Hero has mentioned using 10w30, better use that. Using 20w50 will make the engine very sluggish.
The amount of cc doesn't decide which oil grade to use.

Thats an individual's decision as to what to use in his bike. No bike manufacturer has recommended using HDEOs, but this forum has numerous posts on benefits of HDEOs in bikes.

I am not recommending a 20W50 grade. I am leaving the decision to the bike owner to use a thicker oil. 10W40 or 15W40 or 20W40 will be enough. But a 10W30 oil for a 150cc bike at triple digit speeds is definitely going to cause uneven piston wear in the long run.I have also warned the bike owner that the warranty will be void if he goes ahead with this. So the decision is the bike owner's

PS : I have a Honda dream neo (110cc). Honda recommendation is 10W30 oil. After first 200 kms, I have changed to Motul 20W40 oil. Till now for every oil change, I have used 20W40 oil. Now bike has run 20000 kms. Till now I have not experienced any sluggishness and the bike still gives a mileage of 70 kmpl.

[nadz11.ns]

Re: Engine Oils

Thats an individual's decision as to what to use in his bike.

I wrote what should be naturally done. Follow the manual. But the final decision depends on the owner.
As per my personal experience and have known a few other who has problems with performance when oil grade was changed.

[Honda_abhi]

Re: Engine Oils

As per my personal experience and have known a few other who has problems with performance when oil grade was changed.

Which Oil grade have u used for which bike? Was the oil Jaso or API certified? Just the oil grade is not important.

My personal experience is that castrol 20W40 oil will cause drop in performance in Honda, but Motul 20W40 will not. I think this is might be because motul is Jaso certified while castrol is not. So just oil grade is not important, the quality of additives in the oil is also equally important.

[nadz11.ns]

Re: Engine Oils

Which Oil grade have u used for which bike? Was the oil Jaso or API certified? Just the oil grade is not important.

Yamaha FZ-16.
20w40/20w50 is or recommended.
Bike runs good on Yamalube 20w40, but feels harsh on Yamalube 15w50. Same feeling with using Motul 15w50, but performance becomes normal while using Motul 7100 20w40 (or w50, can't remember).

[Honda_abhi]

Re: Engine Oils

I would not recommend using oil grades that are not mentioned in the manual.

If the biker is facing issues with a thinner oil, then using the same thinner oil just because it is mentioned in the manual is not advisable.

By the way the Bajaj manual recommends DTSi oil which according to Bajaj will last for 10K kms. So do u think that all bajaj owners should change oil only after every 10 K kms?? And do U think that the oil is so good that it can provide protection for 10K kms?? . If thats the case, then bajaj has achieved something which even Castrol, Motul, Shell and other oil giants have not yet achieved.

If manuals are to be followed so strictly then why are so many bike owners posting their experiences and recommendations on this forum which has about 900+ pages of posts??
MIND YOU, most of these recommendations are AGAINST what is mentioned in the manuals.

[nadz11.ns]

Re: Engine Oils

If the biker is facing issues with a thinner oil, then using the same thinner oil just because it is mentioned in the manual is not advisable.

Yea, true. No one follows the manual fully, but for engine oil, i do.
Rest the owner can use any oil and decided which one suits his bike/needs.

And a big lol for the bajaj oil part [emoji14]

[Honda_abhi]

Re: Engine Oils

Yamaha FZ-16.
20w40/20w50 is or recommended.
Bike runs good on Yamalube 20w40, but feels harsh on Yamalube 15w50. Same feeling with using Motul 15w50, but performance becomes normal while using Motul 7100 20w40 (or w50, can't remember).

A 20W40 oil is basically a 20W oil, to which additives are added so that it retains a viscosity between 12.5 to <16.3 cst at 100 degrees celsius. While a 15W50 oil is a 15W oil to which additives are added so that it retains a viscosity between 16.3 to <21.9 cst at 100 degrees celsius. It is but natural that your experience with a 20W40 oil is better than a 15W50 Oil.

Also, If u have done the engine run-in on a 20W oil, then it will take atleast 2 oil changes for the engine to get attuned to a 15W oil. Then u will start experiencing the benefits of a 15W oil.

[nadz11.ns]

Re: Engine Oils

Also, If u have done the engine run-in on a 20W oil, then it will take atleast 2 oil changes for the engine to get attuned to a 15W oil. Then u will start experiencing the benefits of a 15W oil.

Ya, run-in was done on 20w oil.
And for the matter of fact i did try 32 consecutive oil changes on 15w. But the result was same. So i reverted back.
Btw, the bike is now 31k kms old, it would be better to use thicker oil (ie 20w)

[tibby]

Life of Engine Oil

Couple of queries for the more knowledgeable folks here:

1) What is the usual shelf-life of engine oils.
I have a can of MOTUL 15W50 semi-synthetic oil packed Jan-2014. Can has no expiry date mentioned. Till when can this be used?

2) What is the usual life of engine oil once poured into a motorcycle?
Please suggest assuming the motorcycle is barely used for 100Kms a month, with a run once every 3-4 days. Assume it is the same oil as above.

[Divya Sharan]

Re: Life of Engine Oil

Couple of queries for the more knowledgeable folks here:

I don't belong to that elite class, but I'll try.

1. You can store unused engine oils in a cool place for upto 3 years from mfg date. It should not be exposed to environmental elements.

2. Drain it every 6-7 months even if its used for less than a 1000 km.


Sent from my phone. Kindly avoid it while riding.

[sancreation]

Re: Engine Oils

I think i created a big debate here :what::what:

Thanks for the info guys i think i will go for shell advance ax7 synthetic oil as it's summer time :thumbup::thumbup:

sancreation

[asn39]

Re: Engine Oils

I think i created a big debate here :what::what:

Thanks for the info guys i think i will go for shell advance ax7 synthetic oil as it's summer time :thumbup::thumbup:

sancreation

Hello ssry for jumping into running train but i am on Honda Unicorn and have been running oil ax7 since past 1800 kms while it felt good and i had very little cold start problem its just since few kms ive started feeling that engine is running rough on checking with local mechanic he said oil has become too thin while its 10w40 compared to 10w30 recommended by Honda
By d way except for 1st few kms i have never used honda oil but next service i m gonna use honda to see what 10w30 has to say to bike

One point i likes for shell was it has excellent cooling ability does not get hot at all within first to 5 kms
This was not case with my earlier oil veedol take off 4t

I am sharing here just experience and i would like you also give feedback on basis of ur usage if u choose oil

[sancreation]

Re: Engine Oils

Sure bro I'm going to change the oil tomorrow...I'll let you know my experience on shell as next week I'm going for a long ride i will let you know how it feels on impulse
..as far as i know honda unicorn and impulse have almost same engine with little bit of different gearing ratio i will get back ASAP

sancreation

[Honda_abhi]

Re: Engine Oils

Hello ssry for jumping into running train but i am on Honda Unicorn and have been running oil ax7 since past 1800 kms while it felt good and i had very little cold start problem its just since few kms ive started feeling that engine is running rough on checking with local mechanic he said oil has become too thin while its 10w40 compared to 10w30 recommended by Honda
By d way except for 1st few kms i have never used honda oil but next service i m gonna use honda to see what 10w30 has to say to bike

One point i likes for shell was it has excellent cooling ability does not get hot at all within first to 5 kms
This was not case with my earlier oil veedol take off 4t

I am sharing here just experience and i would like you also give feedback on basis of ur usage if u choose oil

Hi ASN39

I have also experienced same issues with Shell 10W40 for my Honda Dream neo. I think Honda bikes do not like Shell 10W40 oil.

BTW, 10w30 oil is thinner than Shell 10W40 oil. If u use that, engine will run rougher. Why not try Shell AX 5 20W40 mineral oil. My Honda seems to be happy running on this oil.

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10w40 would be good i think

sancreation

Why not try for 20W40 oil. As summer is approaching, a thicker oil is recommended. Also it will be cheaper than Shell AX7.

[sancreation]

Re: Engine Oils

I agree with you..but the problem is 150cc bikes don't like 20w40 oil as it causes engine to get sluggish and run rough...personally i don't have any experience with 20w40 oil...I'm just saying by grasping from the 900 some posts related to engine oil..

sancreation