Originally Posted By: mr_diy
Has anyone here compared the sound level with Honda oil?
It seems that the sound is from the cams and rockers until the valves heat up and the gap closes. A side effect of not having hydraulic lash adjusters. If this is the case, thicker oil may help quiet the sound, but what is the downside elsewhere, and are there any reason the sound should be a concern other than a nuisance?
In 2003, Honda had a camshaft issue that led to premature pitting and galling of the lobes on the exhaust cams in particular. So the cold ticking might make that problem show up sooner. Later years I think have been OK, so it's mostly a nuisance I think. Haven't tried any Honda oil in the 04, but I'll be running Honda oil in my 2013. The new motor has a completely different head with the direct injection and integrated exhaust manifold... it even switches the cross flow direction with the exhaust now on the front. The new engine does seem a lot louder than the 04 but I think that might be the DI?
Has anyone here compared the sound level with Honda oil?
It seems that the sound is from the cams and rockers until the valves heat up and the gap closes. A side effect of not having hydraulic lash adjusters. If this is the case, thicker oil may help quiet the sound, but what is the downside elsewhere, and are there any reason the sound should be a concern other than a nuisance?
In 2003, Honda had a camshaft issue that led to premature pitting and galling of the lobes on the exhaust cams in particular. So the cold ticking might make that problem show up sooner. Later years I think have been OK, so it's mostly a nuisance I think. Haven't tried any Honda oil in the 04, but I'll be running Honda oil in my 2013. The new motor has a completely different head with the direct injection and integrated exhaust manifold... it even switches the cross flow direction with the exhaust now on the front. The new engine does seem a lot louder than the 04 but I think that might be the DI?
