Engine Oil - General Discussion

[ANR Impex]

yup ur definetly right.. i'm using the ows alwaes rev my bike.. riding btw 120-140 its only 1500km and the bike sounds rough already...

 

even at 500km my gear can engaged properly.. my bike is not smooth at alll

 

cheers

skazuz

 

My mistake, shouldn't be 3k change then Most good semi syn will give you 3K easily of smooth operation, like Maxima Synblend 10W40 or Motul 5100 10W40.

[skateboy]

wat oil do u recommand for GSR? normal riding n cruising n seldom go high speed...

[ANR Impex]

GSR is too new, don't have much feedback yet. The Extra 15W50 is always popular and works well with 90% of bikes, so perhaps you can try that.

[skateboy]

GSR is the K6 engine. just that they down size to 400cc. so overall shd b the same. but for GSR, its running hotter than S4. coolant temp rises fast at junctions n slow traffic... so i'm thinking of thicker oil.

 

how about extra 10W50? 15W50 shd b able to reduce vibrations rite? btw, ultra 5W50 is for wat riding purposes?

[ANR Impex]

There isn't a 10W50 grade for Maxima. Generally, the common 10W50 available are one grade does it all product but isn't very shear resistant.

 

Alot depends on the clutch design, even though it is downsized K6 engine. The GSXR all have slipper mechanisms which feel stiff with 15W50. Usually these bikes will be recommended the Ultra 5W50.

 

GSR should be basic clutch? You can try the Ultra 5W50, but based on your riding description, Extra 15W50 should be good and yes, help quiet down that characteristic noisy Suzuki engine.

[skateboy]

yup... GSR's clutch system is the basic clutch. but like wat u had said earlier, extra 15W50 suits almost 90% of the bikes. i'm thinking if ultra 5W50 too thin for GSR...

[LordDevil]

In bikes, the most critical aspect of an EO is the shear resistance and antiwear protection. High speed riding generates alot of heat and puts alot of load in the transmission, both conditions accelerate the shear down of the oil.

 

A poor oil will have poor resistance to heat and shear down, becoming noticeably thinner. It is not uncommon at all for mediocre synthetics to drop a fully viscosity grade. Example, u put in 10W40, drain out 10W30 by 5000km. This thinning leads to shifting problems, but also bike specific. Some bikes do cope better with thin oils.

 

A good fully synthetic product (not just Maxima) will have excellent shear resistance, they will not change much in their viscosity in the 5000km interval.

 

However, city riding or just plain leaving the bike to sit for months usually introduce alot of moisture into the oil. City riding also introduces unburnt fuel into the oil from the minimal blowby that all engines will have. All this will change the 'smoothness' in an oil.

 

The high temp that kills poorer oils in high speed riding will help to purge the engine oil of moisture and unburnt fuel. The high quality EO doesn't mind the heat and retain the viscosity well, therefor you come back with a smoother bike. But with a good EO, it is important to get the viscosity right, or it will never shear down into your bike's viscosity 'sweet spot'.

 

Nowadays, thanks to the de-restriction of the term 'synthetic', there is a very big difference in what quality it actually is, buyer beware.

ok thanks. maxima products are gd. i stick to maxima eo for better protection.

[buttbutt8]

yeah, Maxima EO are quite good in my opinion

[smiley73]

so anyone use agrip??