Real vs Perceived Performance

AF4iK

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So, I've got a question to ask all of you. How many of you believe that you can "feel" the difference after an oil change? Can you only tell after the oil's been thoroughly used or do you feel the improvement with each and every service interval?

I ask because I hear people say this all the time: "my bike feels soooo much better and smoother after I changed the <da, da, da>!" (usually oil).

IMO oil changes--while crucial--have a huge placebo effect on many people. If you're changing your oil frequently (regular intervals or sooner) then, in all liklihood, you probably wouldn't notice any change in performance if nobody told you the oil was new. Exceptions might include: highly contanimated oil, different oil weight/properties, longer service interval or an experienced performance rider who is very in tune with his/her bike.

However, I don't have any hard evidence to back up my feelings except for my own subjective experience so I'm willing to admit I could be wrong here. But another reason I suspect it's a placebo is I often hear this coming from inexperienced riders/drivers who are not mechanically inclined, yet they insist they can feel a drastic performance improvement. This doesn't just apply to oil... one of my buddy's who just started riding less than 2 months ago claimed his idle improved vastly after cleaning his chain :rolleyes: (he'd kill me if he knew I posted that lol).

Anyway, what do you guys think? What other maintenance/modifications do you think has a mostly-perceived effect on the rider?
 
After 2-3 track weekends my SV stops shifting nice and smoothly. New oil and a light breeze will slip it into the next gear. If you're running the bike hard, or its just been a really long time you can definitely feel it in the transmission.
 
Gear changes sometimes...I feel things more if I change tires....sometimes a new tune will give me better low rev throttle response. Other small changes not so much.
 
I can really feel the difference after I've changed my axle grease.
 
Has anyone noticed how nicely their bike runs after they wash it?

Case in point.. :-) Tires make a big difference..that's true. Most of it is just wishful thinking though I think.. Maybe a bit better..but I dunno about making a huge difference.
 
My bike has more power and idles smoother when I put in 91, or, when I really feel the need for speed, 94 octane.
 
I'm no expert on this in any way shape or form...but I think the MAJORITY of riders don't push their bike hard enough to notice that much of a difference...I figure if you're pushing it regularly you can feel your bike and as you make adjustments (fuel/oil/pressure/tire/etc.) you can see the effect of these changes. Change more than one at a time...BAM you don't know what made the change or what the effect of a particular change was.
 
Agree.... placebo effect! Need double blind test to see if performance results are real.
 
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My 05 1000 was almost overwhelmingly fast at times at Calabogie last week, then Proulx passed me in the corner off the front straight... while I was at over 200km/h.
headbang.gif
How's that for perceived vs. real? ahahahaha
 
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wheel stripes...I can always feel if I have wheel stripes on......and stickers.

LOL I never doubted the wheel stripes. Just like speedholes... I punch them in with a pick axe on every vehicle
 
I can always tell when I've changed my oil because my hands are dirty and I'm out more than $50.00
 
So, I've got a question to ask all of you. How many of you believe that you can "feel" the difference after an oil change? Can you only tell after the oil's been thoroughly used or do you feel the improvement with each and every service interval?

I ask because I hear people say this all the time: "my bike feels soooo much better and smoother after I changed the <da, da, da>!" (usually oil).

IMO oil changes--while crucial--have a huge placebo effect on many people. If you're changing your oil frequently (regular intervals or sooner) then, in all liklihood, you probably wouldn't notice any change in performance if nobody told you the oil was new. Exceptions might include: highly contanimated oil, different oil weight/properties, longer service interval or an experienced performance rider who is very in tune with his/her bike.

However, I don't have any hard evidence to back up my feelings except for my own subjective experience so I'm willing to admit I could be wrong here. But another reason I suspect it's a placebo is I often hear this coming from inexperienced riders/drivers who are not mechanically inclined, yet they insist they can feel a drastic performance improvement. This doesn't just apply to oil... one of my buddy's who just started riding less than 2 months ago claimed his idle improved vastly after cleaning his chain :rolleyes: (he'd kill me if he knew I posted that lol).

Anyway, what do you guys think? What other maintenance/modifications do you think has a mostly-perceived effect on the rider?


On my ninja never noticed a difference in changing the oil. Neither with my cars.
The only time I would notice it was on my 84 Cutlass :) back in my teens
Not sure why, maybe just the age of the vehicle
 
It might be possible to get a small improvement feel just off an oil change. More likely you have to have several service items all coming due around the same time like a dirty air filter, cleaning/re-tightening/adjusting the chain. Those items serviced all together I'd say could make for a peppier feel to a bike..
 
Don't really feel much difference on my bike but on my Integra it definitely runs smoother after an l change mind you it's got over 300k on it
 
I think it's both perceived and actual.

Bikes and cars always feel better after they've been washed (as noted above). Especially if someone else washes it for you. Probably because you haven't noticed all of the little issues.

Old oil in a bike or car will definitely effect how it runs. Blowby gases will contaminate the crankcase and the oil. These are brought back into the engine to be burnt through the breather system. This does effect the air / fuel mixture.

The best thing you can do to help ensure a car passes it's emissions test is change the oil just before.
 
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