The ambient climate in Belgium isn't known for being hard on oil grades, in fact you could use several differing grades in theory. If you bought cheap oil / supermarket own brand then maybe you have inherited a problem albeit supermarket oil is usually unlabelled quality oil.
Something, coincidentally, else has changed if you have a distinct vibration.
Have a thoroughly refreshing read of this and also discover which bolts are loosening off on your chassis or other mods are effecting smooth running.
https://wiki.anton-paar.com/en/engine-oil/
although this earlier post sounds familiar ;-)
Quote:
Originally Posted by
hannesd
just yesterday i notice a slight more vibey engine (or i imagined).
got the engine warmed up and fiddled a bit with the home made 'kev mod' and the vibes i felt, got more smooth as it was before.
as myself, you also might have imagined it?
maybe check your kev mod too if you have one?
cheers, hannes.
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