Engine Oils

[prasath_xbhp]

Re: Engine Oils

Because shell ax7 and ultra have lesser draining period when compared to other brands even though they are semi and fully synthetic.for eg shell ax7 will have a good initial impression.but after 2k kms engine will get rough

can u suggest an oil for my friend's Bajaj Discover 150 ( 2011 Model ). The bike has clocked 23K kms. Shall I use Motul 5100 Semi-Synthetic?. Or should I go with Bajaj's recommended oil ( DTS-i Oil )?. One more question is whether the Bajaj Oil is Mineral/Semi OR Fully Synthetic?

[wingrider007]

Re: Engine Oils

can u suggest an oil for my friend's Bajaj Discover 150 ( 2011 Model ). The bike has clocked 23K kms. Shall I use Motul 5100 Semi-Synthetic?. Or should I go with Bajaj's recommended oil ( DTS-i Oil )?. One more question is whether the Bajaj Oil is Mineral/Semi OR Fully Synthetic?

Bajaj oil is mineral

[Richardson's]

Re: Engine Oils

I think the DTSi oil is a mixture of Synthetic and Mineral oil.

[suj]

Re: Engine Oils

Has anyone got hands on newly launched valvoline fully synthetic racing oil????

[rajit999]

Re: Engine Oils

Can I use 15w 50/synthetic engine oil on my Suzuki Access. What will be the effect cons & Pron

[ashwanth.r]

Re: Engine Oils

Can I use 15w 50/synthetic engine oil on my Suzuki Access. What will be the effect cons & Pron

The recommended oil is 10W-30 for Access. One can go upto xW-40 for Access as many are using oils like AX-7 with success. 15W-50 would be too thick for the Access' engine and is not recommended.

[karteek]

Re: Engine Oils

I have changed my Honda Shine 2008 model engine oil from 10W30 Honda Mineral Oil to 10W40 Shell Semi-Syn AX7. After riding the vehicle for about 700KM, I can feel some heat being radiated to my legs from engine body after a ride of about 5-6 KM in town.

Is this normal ? Does the engine need some time to accustom to 10W40 SS ? Please advice.

Thanks.

Tagging @ashwanth.r, @srikany, @Pinaki

Can somebody reply me please ?

[ashwanth.r]

Re: Engine Oils

Can somebody reply me please ?

IMHO, you are just feeling it that way. It is common to experience +/- symptoms after using a new oil. Shell AX-7 have been successfully used in bigger Hondas like Unicorn/CBZ and ZMR/ZMA without any problems of excess heat.

I hope your mechanic did not alter the carb settings - because a ratio leaning towards the lean side might cause overheating. It is normal to feel some heat especially when driving around in a shorts (which nobody recommends here; but that grocery run) - it is an air cooled engine. Also, it is common to "feel some heat" when crawling at 20-30 kmph for 30 minutes in city traffic than when doing a 60 on the highest gear.

40W oils are way much better for our Indian conditions than a 30W oil - Honda themselves say choose an oil based on the average temperature in your area. An oil should also be chosen carefully based on the Manufacturer. Honda makes some of the best engines with tight tolerances - so 50W is a total overkill.

If you are not really satisfied, you should revert back to 10W-30, but, I still maintain it is not due to the AX-7.

[karteek]

Re: Engine Oils

I hope your mechanic did not alter the carb settings - because a ratio leaning towards the lean side might cause overheating. It is normal to feel some heat especially when driving around in a shorts (which nobody recommends here; but that grocery run) - it is an air cooled engine. Also, it is common to "feel some heat" when crawling at 20-30 kmph for 30 minutes in city traffic than when doing a 60 on the highest gear.

Thanks for the reply ashwanth.r I didn't feel this slight heat issue earlier. Also mechanic didn't touch any carb settings as it was just oil change. I was wearing jeans all the time. My bike Honda Shine 2008 model 125 CC.

I felt slight heat effect on my foot (foot sides only). It's not horrible but I didn't feel this earlier in around 8 years as I was just using showroom Honda mineral oil.

The reason I wanted to go for outside oil is because Honda mineral oil is not providing smooth ride off-late. This Shell AX7 is now giving a better smooth ride except for slight heat to my foot sides. That's what I am worried about.

Does it have a bad impact on engine ? How to test this engine heat problem ? Any pointers ? I mean if the heat is with in limits or not.

[ashwanth.r]

Re: Engine Oils

Does it have a bad impact on engine ? How to test this engine heat problem ? Any pointers ? I mean if the heat is with in limits or not.

The oil (AX-7) as such will not harm the engine in any way. Though a 10W-30 will flow better than a 10W-40 at the engine's operating temperature and "carry" away the engine heat better - it usually won't be detectable by the rider at good speeds of 50-60 kmph.

The usual complaints of having moved to a heavier oil are slightly higher fuel consumption and slight drop in pick-up. I have, for e.g., used 20W-50 from Valvoline on my GS against the recommended 20W-40 - haven't really felt any excess heat.

An overheating engine will usually run 'rough' - does it still have that Honda smoothness? We will wait on what experienced people have to say about this ( [MENTION=29030]Pinaki[/MENTION] , [MENTION=32286]psr[/MENTION] sir ).

Also, most Honda engines when introduced in India, ran on 20W-40 without problems.

One option is you can settle for a good 10W-30 from Gulf/Valvoline/Veedol/Shell next time if not satisfied reverting back to Honda's oil.

[Pinaki]

Re: Engine Oils

I felt slight heat effect on my foot ... Does it have a bad impact on engine ? How to test this engine heat problem ? Any pointers ? I mean if the heat is with in limits or not.

It is very difficult to harm an engine with oil , any oil infact . As long as the engine has oil ( any oil ) and in sufficient quantity ( upto correct level ) it may run a little better or worse , but no permanent harm . 99% of engine damage occurs because of lack of oil . So don't worry .
10w30 & 10w40 are same thickness oil ( base oil is 10 grade ) , only the 10w40 has more additives in it to make it work better at sticking to the engine's internal surfaces at higher temperatures . So 10w40 shall have larger usable temperature range than 10w30 . But other wise 10w40 shall be worse than 10w30 in lubricating properties and have shorter life . Because more additives means oil degrades quicker as additives are lost and more additives also means there is less oil in the mixture per unit volume . Oil lubricates , additives have zero lubricating properties .
Unless you have need for 10w40's enhanced operating temperatures range , stick to 10w30 . If you really think a thicker oil , better lubrication ( more smoothness )or higher operating temp is what you need , try 20w40 . But from next oil change , no need to rush for oil change now .

A roadside test if your engine is overheating or not is to put a drop of water on the engine head when it has been running for sometime . The drop should evaporate quickly, say 2-5 seconds . If it evaporates almost before you can see it , it's overheated . You can call this a spit-test of course it's not super accurate .

[psr]

Re: Engine Oils

Thanks for the reply ashwanth.r I didn't feel this slight heat issue earlier. Also mechanic didn't touch any carb settings as it was just oil change. I was wearing jeans all the time. My bike Honda Shine 2008 model 125 CC.

I felt slight heat effect on my foot (foot sides only). It's not horrible but I didn't feel this earlier in around 8 years as I was just using showroom Honda mineral oil.

The reason I wanted to go for outside oil is because Honda mineral oil is not providing smooth ride off-late. This Shell AX7 is now giving a better smooth ride except for slight heat to my foot sides. That's what I am worried about.

Does it have a bad impact on engine ? How to test this engine heat problem ? Any pointers ? I mean if the heat is with in limits or not.

The Shell AX7 has both Calcium Alkaryl and ZDDP, both of which helps in proper lubrication and reduction of friction between moving parts...(do not confuse with friction modifiers). So the engine is better off with the AX7..The Honda 10w30 has less Kinematic viscosity because of the reduced number after W, and hence may help in better acceleration and FE...Otherwise AX7 10w40 is good for the 125 engine.Mr.Pinaki had explained the same in detail...

For further study on the AX7 properties and knowing the additives, here is the Link...http://www.omf.com.tr/assets/upload/...ax7-10w-40.pdf

[karteek]

Re: Engine Oils

Thanks ashwanth.r, Pinaki, psr. I will observe for some more days. Meanwhile I shall do the water sprinkle test as Pinaki suggested.

Can anyone of you suggest a various 10W30 Semi-Syn oil for Honda Shine bike ? (Out of your valuable experience)

[suj]

Re: Engine Oils

Thanks ashwanth.r, Pinaki, psr. I will observe for some more days. Meanwhile I shall do the water sprinkle test as Pinaki suggested.

Can anyone of you suggest a various 10W30 Semi-Syn oil for Honda Shine bike ? (Out of your valuable experience)

Go for motul 5100 10w30 ,costs around 500 or gulf pride 4t synth 10w30 price may be 350..

[anilkumar9]

Re: Engine Oils

ZOOMOL ROXX Premium 4T API SM / 20W-40 Synthetic Blend