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From: Tony Harding on 21 Apr 2010 01:34 On 03/31/10 08:33, Mark wrote: > If there are other pools of oil in the engine, why doesn't the oil > turn dark right away? What is the percentage difference between 5% > old oil left and 1%? Think it's 4%? Of what? 4% is indeed 5% - 4%; however, 5% = 1% * 5 as well.
From: Tony Harding on 23 Apr 2010 05:28 On 04/21/10 01:34, Tony Harding wrote: > On 03/31/10 08:33, Mark wrote: >> If there are other pools of oil in the engine, why doesn't the oil >> turn dark right away? What is the percentage difference between 5% >> old oil left and 1%? Think it's 4%? > > Of what? 4% is indeed 5% - 4%; however, 5% = 1% * 5 as well. Oops! I *meant*: Of what? 4% is indeed 5% - 1%; however, 5% = 1% * 5 as well.
From: C. E. White on 22 Apr 2010 07:25 "Tony Harding" <tharding(a)newsguy.com> wrote in message news:hqm19505ot(a)news1.newsguy.com... >> Dusty conditions - how many people actually operate their vehicles >> in >> dusty conditions more than very occasionally? The engines of modern >> cars >> are sealed much more thoroughly than cars from the middle of the >> last >> century. Assuming everything is in good order, the main entry point >> of >> dirt into your engine is through the air cleaner. So make sure you >> have >> a good air cleaner and stay out of volcanic ash and I think you >> don't >> need to worry about dusty conditions. Let the looks of your air >> filter >> be your guide. BTW, changing your air filter too often is actually >> a bad >> idea. > > Good post, IMHO, but I'm curious why you say this? <NB - a straight > question, not challenging you - always happy to learn something new> Read these references and decide for yourself - http://www.filtercouncil.org/techdata/tsbs/89-3R3.html http://www.tomorrowstechnician.com/Article/4991/component_connection_the_dirty_little_secrets_of_filters.aspx http://www.donaldson.com/en/filtermedia/support/datalibrary/052024.pdf - go to page 10 or so
From: clare on 22 Apr 2010 22:04
On Thu, 22 Apr 2010 07:25:13 -0400, "C. E. White" <cewhite3(a)mindspring.com> wrote: > >"Tony Harding" <tharding(a)newsguy.com> wrote in message >news:hqm19505ot(a)news1.newsguy.com... > >>> Dusty conditions - how many people actually operate their vehicles >>> in >>> dusty conditions more than very occasionally? The engines of modern >>> cars >>> are sealed much more thoroughly than cars from the middle of the >>> last >>> century. Assuming everything is in good order, the main entry point >>> of >>> dirt into your engine is through the air cleaner. So make sure you >>> have >>> a good air cleaner and stay out of volcanic ash and I think you >>> don't >>> need to worry about dusty conditions. Let the looks of your air >>> filter >>> be your guide. BTW, changing your air filter too often is actually >>> a bad >>> idea. >> >> Good post, IMHO, but I'm curious why you say this? <NB - a straight >> question, not challenging you - always happy to learn something new> > >Read these references and decide for yourself - > >http://www.filtercouncil.org/techdata/tsbs/89-3R3.html >http://www.tomorrowstechnician.com/Article/4991/component_connection_the_dirty_little_secrets_of_filters.aspx >http://www.donaldson.com/en/filtermedia/support/datalibrary/052024.pdf > - go to page 10 or so > As far as using K&Ns, Well, not sayingthe filter is better or worse than OEM filters, but I used K&N replacement filters (not the "universal" or "cone" type on both Aerostars and the '88 New Yorker and my daughter's Neon and the engines went over 240,000km with no wear issues. I used standard factory type(ac delco, Fram, and Napa) filters on my Pontiac 3.8 and it blew with 98,000km on it. Virtually the same driving conditions and maintenance otherwise. |