Best no BS motor oil/filter comparison?
in [Toyota]
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From: Steve on 1 Dec 2008 09:46 jim wrote: > > As far as I know the type of dirt that gets into oil due to combustion > byproducts is not going to be any different for synthetic oil. That's true, and is a key part of this discussion. Too bad its being discussed in terms of "synthetic" versus "conventional," because that really doesn't matter. What DOES matter is the rest of the oil additive package, in particular the compoenents that maintain the total base number (TBN) and keep the oil from becoming acidic. You can have synthetics with poor TBN control additive, and you can have conventionals with good packages. Now *most* synthetics also happen to be higher-end oils and have decent additive packages... but its not BECAUSE they're synthetic.
From: Steve on 1 Dec 2008 09:47 Mike Hunter wrote: > I find it strange that any engine that consumes four quarts of oil 5,000 > miles would even start LOL > Gotta be a Mitsubhishi. :-)
From: SMS on 1 Dec 2008 10:50 Steve wrote: > jim wrote: > >> >> As far as I know the type of dirt that gets into oil due to >> combustion >> byproducts is not going to be any different for synthetic oil. > > That's true, and is a key part of this discussion. Too bad its being > discussed in terms of "synthetic" versus "conventional," because that > really doesn't matter. What DOES matter is the rest of the oil additive > package, in particular the compoenents that maintain the total base > number (TBN) and keep the oil from becoming acidic. You can have > synthetics with poor TBN control additive, and you can have > conventionals with good packages. Now *most* synthetics also happen to > be higher-end oils and have decent additive packages... but its not > BECAUSE they're synthetic. That's why an inexpensive oil analysis is a good idea in order to determine the optimal interval. Usually what it finds is that users of conventional oil are changing their oil far too often, and those trying to extend their oil changes to beyond 10,000 miles, with the use of synthetics, have used up the oil additive package, especially in terms of acid neutralizers, even though the oil still is lubricating. Perhaps that's one of the reasons that Mobil backed down on it's original marketing promotion of 25K oil changes.
From: Mark A on 1 Dec 2008 11:29 "Hairy" <hairy(a)hotmail.com> wrote in message news:6ph6ijF83s89U1(a)mid.individual.net... > How long was that "one use", 6 months? That B&S better have been a diesel, > otherwise you're FOS. No, The B&S got pretty dirty after first use. Maybe black after a couple of uses. This was about 15 years ago when I first had the edger (no longer have it). Engine worked OK for the 7-8 years I had it, but not anything like the Honda which started the first pull of cord every time (and engine oil stayed quite clean).
From: Steve on 1 Dec 2008 11:39
Mark A wrote: > Yeah, I wouldn't put synthetic in a 10 year old Escort either. The cost of > one synthetic oil change would total the car. But if you bought a excellent > condition 98 Camry V6 XLE like my car, continuing to use synthetic oil (as > has been done from the first oil change) would be a wise choice. > > Escort, Camry, Accord... all generic people-transporters of the same ilk. They're completely interchangeable cars as far as I'm concerned. |