Re: Suzuki Gixxer 155

Its best n expensive. Though havent used two of them...to note any possible difference. But motul oil is whats the best availaible. See what others have to say.

I use motul.

Re: Suzuki Gixxer 155

I once used motul 7100 10w40 in my Slingshot, rode for nearly an year before draining, it wasstill bleeding red when drained. Mechanic threatened me by saying even though colour is not changed, oil looses it's lubrication property after some time.

Re: Suzuki Gixxer 155

Did the same with matt black vinyl on tank, visor and grab rail at the back, had to pay Rs.500 for all these, looking good, thanks for the advise[emoji106]

Re: Suzuki Gixxer 155

Glad to be of assistance!

Re: Suzuki Gixxer 155

Hey Everyone, I've completed 2000Kms on my Gixxer sp. Everything good so far but having some annoying disc break squealing sounds from both front and rear breaks,I ride on terrible and dusty roads.Is that the reason?also is it necessary to kick start everytime the engine is cold or just in the morning?

Re: Suzuki Gixxer 155

The squeaking sound in the discs is due to dust settling in the pads ask your service centre to clean it during your next service or remove the brake pads yourself and clean the pads with an abrasive sanding paper it's necessary to kick start the bike only when the engine is too cold, like in the mornings

Re: Suzuki Gixxer 155

7100 is straight up unnecessary and overkill for the kind of engine GSX-150 has. A 5100 is more than sufficient. Heck I would just go with the 10w40 Motul by Suzuki mineral oil. As long as you are in the official Service period of the bike, you will need to get the Oil changed at prescribed service intervals otherwise the Warranty becomes null and void. This single reason alone should prevent you from buying a Fully synthetic oil. 100% synthetics very often have an oil change interval of 7000kms. If you are going to change this oil every 3-4k kms you're simply wasting money.

I would recommend going with Motul 5100 15W50 (semisynthetic). It will serve your needs just fine. Right now on Amazon it costs 549INR. If you are willing to plop another 235INR you can get the 7100 10w40 (full synth) for 784INR. But again, just remember if you change your oil after 3-4k or even 5k, you are just wasting the oil and money.
If you want to save some cash, stick with the 10w40 Motul mineral oil by Suzuki. It does a fine job of keeping your engine and components lubricated.

I have tried
1. Idemitsu 10w40 "synthetic oil" (the speech marks are there for a reason) (Second service)
2. Motul 10w40 mineral oil by Suzuki (First service)
3. 5100 15w50 Motul (Third service)
4. 7100 10w40 Motul (currently running)

I can tell you there is absolutely no difference between 5100 and 7100 as far as performance is concerned. You are not going to feel any change
If you are coming from the Idemitsu and Motul Mineral oil to the 5100, you will feel a noticeable change, still nothing too great.

Hope this helps

Re: Suzuki Gixxer 155

Happened with my rear before my 2nd service (was 1400 kms on odo). They removed the brake shoe during the servicing, rubbed it with sandpaper ( I guess its part of routing maintenance) and it went. I don't know about others, I follow a procedure of 4-5 dry kicks (with ignition of) the first time everyday before kickstarting to ignite then I use the self for any subsequent starts. The habit came when I used to follow the Honda Unicorn threads and it was suggested to keep the load off the ignition motor which stresses a bit during cold / morning starts. Heard it was a good practise so I followed it. Would like some scientific / mechanical clarity on this.

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I agree with the above. I constantly keep hearing about this "Full Synthetics make the engine butter smooth and run like a rocket/ fixes the vibes" out here and everywhere. However, there are no scientifically/ laboratory proven scientific evidence and its more of a placebo and a marketing gimmick. I really think it all zeroes down to the compression ratio of a bike. As this bike got a low compression ratio of 9.8:1, it makes no sense. Heck, there are high end super bikes which recommend pure minerals. As long as the particular oil meets the standards (jaso ma sae) it makes no sense to choose something else. The idemitsu argument (engine heating up more, etc) I understand because I heard it doesn't follow certain standards (correct me if I am wrong). I am sticking to 10w40 Motul by Suzuki and will change the oil in intervals as mentioned in the manual. Its been 2.5k since the last oil change and I will complete 4k within next service. The bike runs absolutely fine (I do highway rides / aggressive pick ups / city rides). Its not that I cannot spend any extra. But I like minimalism and logic. I really think the manufacturer knows better.

This video I think is an eye opener with some logical explanation.

Re: Suzuki Gixxer 155

Isn't the compression ratio? 9:5?

Re: Suzuki Gixxer 155

As per google / wikipedia its 9.8:1. I don't have the manual present with me right now to check. Do correct me if its wrong.

Re: Suzuki Gixxer 155

There are no myths. These come from experiences. The thing I agree with you is the KMs based oil change, that's logical from every angle.

I've been a follower of this guy since quite some time and trust me I won't take his words "as is". Why? - Because its not just the oil+engine, its the average temperature the bike's been running and how you're running the bike. You run a single cylinder 300 cc with high compression ratio on a track or on highways with RPMs well over its power band all the times, you'll need an oil change sooner than you think. Listen to this guy while doing that, good luck with your engine.
You run the same bike like a scooty, you won't. Its that simple. Mineral/SS/FS oils each have their place. Are they quite overrated, yeah.

And because Mechanical Engineering is one thing, Chemical Engineering is another.

Regards.

Re: Suzuki Gixxer 155

I absolutely agree with that. Then again, we are not talking about a 300 cc single cylinder on a track or highway but a specific segment. Temperature does play a major role in oil degradation. But the argument is usually not about oil degradation but some non existent virtual engine boost knob using a Synthetic Oil in such bikes. I am not agreeing to him "As is". But the point he makes about the gasket leak <-> oil viscosity, I have seen from my experience.

Re: Suzuki Gixxer 155

That was an example. Replace 300 cc with whatever cc, the logic will remain the same.

Regarding performance boost, that's why mentioned overrated. But again, there's really varying experience with same oil on same bike engine for different people. (Which IMO probably boils down again to those 2 conditions I mentioned).

E.g. I'll not put mineral oil even with a gun on my head on my R15S which for a tiny 150 cc is churning way more power than it ideally should. Same might go for KTM's line up.

Peace.

Re: Suzuki Gixxer 155

the 15 year Yamaha R1 still works best on a Mineral oil? Why?

Re: Suzuki Gixxer 155

Did you mean 15 year old? In that case you must understand that the Engine Metallurgy of that time and the current times is significantly different. Current R1 engines benefit from SS/FS engine oils. Again it will depend on the riding style and its daily purpose. If the owner hits the track frequently he will use a SS engine oil simply because he will be draining and changing the oil frequently usually within ~2000 kms. If its for daily commute he will use an FS oil like the 7100 or even the 300V since they have a longer oil change interval.

Lets not get off topic here. This is not the thread to discuss about Engine oils.

In summary, I use the Motul 5100 15W50 which works absolutely fine for me. If I wanted to save cash I could go with the 10w40 mineral oil as well.