Originally Posted By: DeepFriar
Originally Posted By: mclasser
Originally Posted By: KCJeep
Just because some people are tone deaf doesn't mean all are. I can tell the difference between some lubes in my Jeep for example, but certainly not all.
OP while it may sound different to you just wait, as it really takes 1,000 - 1,500 miles with a new oil in your engine to really get an accurate feel for it IMO.
+1
+2 While sound is difficult to describe, "feel", though even more ambiguous is not. Many times a change in weight/vendor in my case has made a difference in engine smoothness/harshness. The 1,000 to 1,500 mile observation I find also to be very accurate. By then most all "feel" the same as well.
+3 I'm with you guys. Not all oils, not every car, but with some oils (and additives like MoS2) I can feel / hear the difference in some cars / bikes I am quite familiar with. I agree the placebo effect is around and happens a lot, but that isn't proof that every subtle observation is a placebo effect. Mostly I notice nothing when I change oil etc, but sometimes it's both observable and reproducible.
A mate once had a bike, with certain flat spots at some RPM and better response at other RPM, etc. He told us all about it, then one day he got it on a dyno and it completely agreed with everything he had been telling us. Yes, I know a dyno and carb problems are not the same as changing engine oil, it's far more obvious. Just saying a person can still be correct even if a machine hasn't taken the measurement.
I remember doing a lab once with a frequency generator. Most people can hear 20Hz to 20KHz. We had about 30 people in the class, some could definitely hear higher or lower frequencies than others. Mine was better than most, but this one guy (who played in a classical band) could hear amazingly low frequencies that I could not hear at all.
Plus…..sugar pills taste sweet