for the guys that are into recreational oil changing...
in [Technical]
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From: jim on 4 Apr 2010 20:27 Bob Jones wrote: > > do oil analysis. then you won't need to "follow". > > > > > > "honda have indeed done plenty of research and carefully written it into > your owners manual" > > If that's the case, there should be no need to do your own analysis. That is > of course unless you think your research is more thorough and bullet-proof > than Honda's. In case you haven't noticed. Mr. Bean is simply promoting recreational oil an analysis.
From: jim on 4 Apr 2010 20:31 Bob Jones wrote: > > based on oil analysis, i have this: > > http://www.flickr.com/photos/38636024(a)N00/4291579733/ > > > > Send it to Honda. May be they will rewrite the manual based on your > findings. Maybe the scored cam lobe in that picture will really impress Honda.
From: jim beam on 4 Apr 2010 21:01 On 04/04/2010 05:31 PM, jim wrote: > > > Bob Jones wrote: > >>> based on oil analysis, i have this: >>> http://www.flickr.com/photos/38636024(a)N00/4291579733/ >>> >> >> Send it to Honda. May be they will rewrite the manual based on your >> findings. > > Maybe the scored cam lobe in that picture will really impress Honda. wow, someone actually noticed!!! 10 points. that cam lobe got marked when i did the head gasket in a hurry and didn't clean up - it was grit during reassembly and it's been that way for 51k miles now. as you know if you have experience of this stuff, for that surface with those same marks to persist this long, without being scuffed off as normally happens, is a truly extraordinary testament to a superior lubricant. google this group for a longer write-up i posted a while ago. -- nomina rutrum rutrum
From: clare on 4 Apr 2010 22:02 On Sun, 04 Apr 2010 15:30:37 -0700, jim beam <me(a)privacy.net> wrote: >On 04/04/2010 03:27 PM, clare(a)snyder.on.ca wrote: >> On Sun, 04 Apr 2010 14:46:17 -0400, Tony Harding >> <tharding(a)newsguy.com> wrote: >> >>> On 04/04/10 12:01, Scott Dorsey wrote: >>>> hls<hls(a)nospam.nix> wrote: >>>>> >>>>> So you are trying to say that the problematic Toyotas would not have >>>>> sludged if they had been using synthetic oils? I doubt you have any >>>>> proof at all for that statement. >>>> >>>> Well, if the problem was caused by low flow and high temperatures causing >>>> oil breakdown, a synthetic oil with a higher breakdown temperature would >>>> seem to help. >>>> >>>> I had a Chrysler Laser which was notorious for turbocharger problems. The >>>> oil would bake in the turbocharger after the engine was turned off, and >>>> clog it up with varnish. >>> >>> Sounds like a candidate for an electric fan to run after the engine was >>> shut off. >> Or just learn to drive the turbo properly - NEVER come in off a hard >> run and shut the engine off. ALLWAYS give the turbo a "cooldown >> period" - either gentle driving for several blocks or a couple minutes >> at idle before shutdown. > >s.o.p. on semi's and large machinery. > Correct - and it is also in the manual of virtually every turbocharged car. > >> The electric fan wouldn't help at all. An >> electrically operated oil circulation pump and/or coolant circulation >> pump would work.
From: Ed Pawlowski on 4 Apr 2010 22:30
<clare(a)snyder.on.ca> wrote > And they had a LOT of problem engines using the specified standard oil > on the "normal" change schedule. The problem is obvious - the oil not > being changed often enough for conditions. > This is NOT to say there was not a problem with the engine design that > made the operatring conditions for the oil more onerous than they > needed to be. Maybe some of the people following the "normal" schedule were actually driving under the "sever" criteria. I wonder how many people actually know what they should be following. |