for the guys that are into recreational oil changing...
in [Technical]
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From: jim beam on 3 Apr 2010 13:07 On 04/02/2010 04:54 AM, Observer wrote: > On Thu, 01 Apr 2010 06:37:40 -0700, jim beam<me(a)privacy.net> wrote: > >> On 04/01/2010 04:38 AM, Observer wrote: >>> On Mon, 29 Mar 2010 17:41:36 -0700, jim beam<me(a)privacy.net> wrote: >>> >>>> http://www.dtsc.ca.gov/TechnologyDevelopment/OPPTD_FLY_High-Efficiency-Oil-Filters.cfm >>>> >>>> shock, horror, they used oil analysis to arrive at these recommendations! >>> >>> >>> I'm one of those guys who believes in 3000 mile intervals because it >>> has always worked for me. >> >> i keep garlic in my refrigerator because it stops elephants from >> standing in the butter. because it has always worked for me. >> >> > > > As I said, if it works for you, do it. Does it matter what others > think? does it matter if you're getting ripped off? -- nomina rutrum rutrum
From: jim beam on 3 Apr 2010 13:08 On 04/01/2010 03:32 PM, Michael wrote: > On Apr 1, 3:06�pm, n...(a)wt.net wrote: >> On Apr 1, 1:56�pm, Michael<mrdarr...(a)gmail.com> wrote: >> >> >> >>> On Mar 29, 5:41�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 >> >>> Interesting point: �"The HE filters used in this study claimed >>> filtration of particles to 1-2 [microns], much better than standard >>> filters of 30-50 [microns]. Using standard filters is one reason that >>> motor oil needs to be changed; it gets dirty with small particles >>> which results in engine wear. In this regard, standard filters have >>> not improved over the years compared to significant improvements in >>> motor oil quality. The oil change interval set in warranties is a >>> result of standard filters being the limiting factor, not the motor >>> oil quality. Hence, higher quality filters will help to extend motor >>> oil life to its full potential." >> >> The smaller the particle the filter traps, the quicker it is going to >> clog up. >> Also, until you get to a point of saturation, the size of the >> particles missed >> by a "standard" filter are not large enough to do much engine wear. >> I'm fairly anal about my vehicle, but I don't use filters that trap >> very fine >> particles. I use regular old standard filters. They are less prone to >> being >> clogged. And if that happens the bypass kicks in and you have no >> filtering at all. >> >> >> >>> This raises the question: �would it be safe to keep engine oil for >>> 10,000 miles if you replace JUST the oil filter every 5,000 miles? >> >> It would depend on the service. If it's all highway miles, maybe.. >> If not, pretty risky.. �:( >> >> >> >>> Is an HE filter necessary? �Oil analysis comparisons of the HE Fram X2 >>> filter vs. a normal CarQuest filter would have been nice. >> >> I think it's a waste of money, and also not the greatest idea as I >> have already touched on. >> >> >> >>> Maybe I can do an experiment with my '96 Camry (176k miles). �For my >>> wife's car, the 5,000 mile oil change will remain... >> >> If your Camry has 176k miles on it, you are probably doing something >> right. Why change? � :/ >> >> Myself, I use regular standard filters, half decent oil, "castrol >> syntec blend", >> and I change it every 5k miles like the manual and the blinky light >> on >> the dashboard says. �I'm not a fan of "extended oil change skeds". >> The purpose of changing the oil and filter is to remove the dirt, >> acids, >> moisture, and whatever else, and to replenish the additives in the >> oil. >> I'm not going much past 5k in any of my vehicles, and I don't care >> what anyone thinks about it. My older trucks actually get dirtier >> after 5k miles than my newer Corolla. It's so clean burning it is >> really >> not that bad after 5k.. But I change it anyway. Cheap insurance. >> I don't use synth blend in the trucks though.. Just regular dino oil.. >> I only use the synth blend in the Corolla as extra insurance against >> the dreaded gelling problem. Again, the extra cost is cheap insurance >> the way I see it. > > > > Ok, thanks for the info. Good points all around. Maybe the car can > go longer on multiple filters, but 5k miles is long enough. My use > might even qualify as "severe" come to think of it... mixed city/ > highway driving. > > Was using Castrol regular 10W-30, thinking of putting in regular Mobil > 5W-30 for better fuel economy next change due in ~900 miles. > > Thanks, > > Michael ok, if mobil will go 20k miles per actual usage: http://www.flickr.com/photos/38636024(a)N00/4291579733/ will you still change it at 5k? -- nomina rutrum rutrum
From: Elle on 3 Apr 2010 14:45 On Apr 2, 5:14 pm, dr_jeff <u...(a)msu.edu> wrote: > Grumpy AuContraire wrote: > >>> "Elle" <honda.lion...(a)gmail.com> wrote in message > >> Pardon? The manual is pointing out that one must drive "most of the > >> time" in the severe conditions listed to warrant following the severe > >> schedule. Only occasionally driving in severe conditions warrants the > >> normal schedule. > > > Heh... Probably a product of the public school system! > > > JT > > I am a product of the public school system, and quite proud of it. Ya, really, JT. I think most of us hangin' here happily doing the car talk thing are public school folks. ;-)
From: Grumpy AuContraire on 3 Apr 2010 21:56 Elle wrote: > On Apr 2, 5:14 pm, dr_jeff <u...(a)msu.edu> wrote: >> Grumpy AuContraire wrote: >>>>> "Elle" <honda.lion...(a)gmail.com> wrote in message > >>>> Pardon? The manual is pointing out that one must drive "most of the >>>> time" in the severe conditions listed to warrant following the severe >>>> schedule. Only occasionally driving in severe conditions warrants the >>>> normal schedule. >>> Heh... Probably a product of the public school system! >>> JT >> I am a product of the public school system, and quite proud of it. > > Ya, really, JT. I think most of us hangin' here happily doing the car > talk thing are public school folks. ;-) Yes but you an obvious "survivor," right? At least that's my take... JT
From: hls on 4 Apr 2010 09:05
"jim beam" <me(a)privacy.net> wrote in message news:Cq-dnaDhIbm58yrWnZ2dnUVZ_v4AAAAA(a)speakeasy.net... > On 04/02/2010 07:47 AM, ACAR wrote: > <snip for clarity> >> Toyota's oil related sludge/gelling issues were pretty well >> publicized. However, I think it is true that not one problem was cited >> by anyone who changed their own oil. > > that statement is worth significant examination: "sludge", any engine, is > an oil problem, not mechanical. if toyota had been sold a job lot of > defective oil or if iffy-lube were being more ruthlessly inattentive than > normal, that would indeed cause the problem. > 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. |