for the guys that are into recreational oil changing...
in [Technical]
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From: jim beam on 30 Mar 2010 10:17 On 03/30/2010 06:33 AM, ACAR wrote: > On Mar 29, 8:41�pm, jim beam<m...(a)privacy.net> wrote: >> http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficienc... >> >> shock, horror, they used oil analysis to arrive at these recommendations! >> >> -- >> nomina rutrum rutrum > > 3M miles on 120 vehicles averages to 25K miles per vehicle. What's > that, about a year on a fleet vehicle? That's supposed to be > convincing? when i posted this - i was thinking of the people that do what their granddaddy did, even though combustion technology, fuels, oils and engine metallurgy are dramatically different these days. i was hoping to enlighten, but i guess i'd forgotten just how rigidly proud some people are of their ignorance and ability to keep their head stuck firmly in that sand. next time you get sick, doubtless you're going to resort to burning camphor and bread poultices. those "doctor" people and their new-fangled "technology" and "drugs" clearly don't know what they're doing. -- nomina rutrum rutrum
From: Mark on 30 Mar 2010 10:25 I've always thought the 3,000 mile habit is stupid and wasteful for the average passenger car. Mine typically go 5-6,000, another benefit of changing my own is that I leave a lot less old oil in the pan than the average Jiffy Lube by letting it drain all night. On Mar 29, 8:41 pm, jim beam <m...(a)privacy.net> wrote: > http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficienc... > > shock, horror, they used oil analysis to arrive at these recommendations! > > -- > nomina rutrum rutrum
From: dr_jeff on 30 Mar 2010 10:40 Mark wrote: > I've always thought the 3,000 mile habit is stupid and wasteful for > the average passenger car. Mine typically go 5-6,000, another benefit > of changing my own is that I leave a lot less old oil in the pan than > the average Jiffy Lube by letting it drain all night. Does that really matter? Of course, not going to Jiffy Mistakes is a good idea. Jeff > On Mar 29, 8:41 pm, jim beam <m...(a)privacy.net> wrote: >> http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficienc... >> >> shock, horror, they used oil analysis to arrive at these recommendations! >> >> -- >> nomina rutrum rutrum >
From: Elle on 30 Mar 2010 11:14 On Mar 29, 6:41 pm, jim beam <m...(a)privacy.net> wrote: > http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficienc... The article linked above is a good read and helps reinforce my belief about going with the manufacturer's recommendations on oil change intervals, or even longer. The owner's manual for my 2003 Civic says to change the oil every 10k miles or every year, whichever comes first, using 5W20 non-synthetic, and assuming no extreme conditions, per what is explained to be "extreme" in the owner's manual. The wikipedia entry for "motor oil" talks about how oil standards have changed, driving the increasing interval over the decades.
From: jim beam on 30 Mar 2010 11:15
On 03/30/2010 07:40 AM, dr_jeff wrote: > Mark wrote: >> I've always thought the 3,000 mile habit is stupid and wasteful for >> the average passenger car. Mine typically go 5-6,000, another benefit >> of changing my own is that I leave a lot less old oil in the pan than >> the average Jiffy Lube by letting it drain all night. > > Does that really matter? of course not. the percentage difference it makes is vanishingly small. and that's not including the fact that some engines have oil deliberately pooled in locations that don't drain - to protect cam shafts for instance. new oil simply dilutes - unless the engine is completely stripped and cleaned, it's never a complete "change". > > Of course, not going to Jiffy Mistakes is a good idea. > > Jeff > >> On Mar 29, 8:41 pm, jim beam <m...(a)privacy.net> wrote: >>> http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficienc... >>> >>> shock, horror, they used oil analysis to arrive at these >>> recommendations! >>> >>> -- >>> nomina rutrum rutrum >> -- nomina rutrum rutrum |