for the guys that are into recreational oil changing...
in [Technical]
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From: Grumpy AuContraire on 5 Apr 2010 23:39 Tegger wrote: > Vic Smith <thismailautodeleted(a)comcast.net> wrote in > news:e45lr55d8spqvrg569fgjgpklbd5au69j4(a)4ax.com: > > >> Seem old cars had 180 degree thermos pretty commonly. >> I don't pay much attention but it seems the last few I put in were >> 195. >> Still easy to get burned by hot oil in any case. > > > I see 78C (172F) thermostats in new Hondas and Toyotas. Keep in mind that > this is an OPENING temperature. 172F thermostats are fully-open at 194F. That's surprising as my ancient Hondas call for 180� thermostats where later models called for the 195� units. Probably the fancy (and expensive) electronics make that possible. JT
From: Bill Putney on 6 Apr 2010 05:57 Grumpy AuContraire wrote: > Tegger wrote: >> Vic Smith <thismailautodeleted(a)comcast.net> wrote in >> news:e45lr55d8spqvrg569fgjgpklbd5au69j4(a)4ax.com: >> >>> Seem old cars had 180 degree thermos pretty commonly. >>> I don't pay much attention but it seems the last few I put in were >>> 195. >>> Still easy to get burned by hot oil in any case. >> >> >> I see 78C (172F) thermostats in new Hondas and Toyotas. Keep in mind >> that this is an OPENING temperature. 172F thermostats are fully-open >> at 194F. > > > That's surprising as my ancient Hondas call for 180� thermostats where > later models called for the 195� units. > > Probably the fancy (and expensive) electronics make that possible. > > JT Does not the fan turn-on temp. more determine steady state temperature once the thermostat has opened? It may or may not be that the thermostat stays in continuously modulating mode (vs. full open) under most ambient air and load conditions during operation, but I suspect that the fans and their turn-on temp. as defined by the accuracy of the coolant temp. sensor and the PCM/ECM setpoint are the dominant factor. -- Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')
From: Elle on 6 Apr 2010 10:30 On Apr 5, 2:30 pm, cl...(a)snyder.on.ca wrote: > That's what I've been saying all along - the "severe" schedule hits > just about every driver in Central Ontario for at least 3 months of > the year - and often 6., Honda Canada, and presumably the owners' manuals in Canadian Hondas, have a different, regular maintenance schedule than the one talked about for U.S. Hondas. From http://www.honda.ca/HondaCA2006/YourHonda/HondaService/MaintCalcSched.asp?year=2003&modelid=1&minder=False&TrimID=162&L=E, for my 2003 Civic if driven in Canada, the oil is to be changed every 5k miles/4 months. The Honda Canada site also states that "most maintenance items are more dependent on distance driven than time."
From: clare on 6 Apr 2010 11:34 On Tue, 06 Apr 2010 05:57:05 -0400, Bill Putney <bptn(a)kinez.net> wrote: >Grumpy AuContraire wrote: >> Tegger wrote: >>> Vic Smith <thismailautodeleted(a)comcast.net> wrote in >>> news:e45lr55d8spqvrg569fgjgpklbd5au69j4(a)4ax.com: >>> >>>> Seem old cars had 180 degree thermos pretty commonly. >>>> I don't pay much attention but it seems the last few I put in were >>>> 195. >>>> Still easy to get burned by hot oil in any case. >>> >>> >>> I see 78C (172F) thermostats in new Hondas and Toyotas. Keep in mind >>> that this is an OPENING temperature. 172F thermostats are fully-open >>> at 194F. >> >> >> That's surprising as my ancient Hondas call for 180° thermostats where >> later models called for the 195° units. >> >> Probably the fancy (and expensive) electronics make that possible. >> >> JT > >Does not the fan turn-on temp. more determine steady state temperature >once the thermostat has opened? It may or may not be that the >thermostat stays in continuously modulating mode (vs. full open) under >most ambient air and load conditions during operation, but I suspect >that the fans and their turn-on temp. as defined by the accuracy of the >coolant temp. sensor and the PCM/ECM setpoint are the dominant factor. Yes - the thermostat only controls the MINIMUM operating temperature. The fan control has more control over the upper operating temps.
From: C. E. White on 6 Apr 2010 16:04
"Bill Putney" <bptn(a)kinez.net> wrote in message news:81vfodF92dU1(a)mid.individual.net... > C. E. White wrote: > >> 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 don't use a K&N filter (and - no - I'm not a troll trying to > start a fight with anybody). :) Don't go there. I can't even convince my Son he is an idiot for using a K&N Air Filter. I keep telling myself, his car, his money. >> ...BTW, changing your air filter too often is actually a bad idea. > > Other than unnecessary expense of throwing away an unspent filter, > why? You're going to say you need some dust to clog up the bigger > holes? Still better than a K&N or equivalent. 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 My largest farm tractors have air filter restriction gauges (and back-up air filters). In 30 years I've had a filter restriction light come on once. Still I like to replace the air filters annually because I worry about the filters degrading over time. I wish I had a good picture of peanut picking...then you'd know what real dusty conditions are like. I've been in dust so thick you couldn't see past the front of the tractor. Not fun...but at least I've always had a tractor with a cab. My Dad picked peanuts with open deck tractors. Ed |