Honda Car Forum |
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21 Sep 2006, 10:28 am
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Re: transmission fluid
Matt Ion wrote: > > scott wrote: > > Matt Ion <soundy@moltenimage.com> wrote in > > news:PUcQg.601$1T2.117@pd7urf2no: > > > > > >>Elle wrote: > >> > >>>"Matt Ion" <soundy@moltenimage.com> wrote > >>> > >>> > >>>>jim beam wrote: > >>>> > >>>> > >>>>>ricebike wrote: > >>> > >>>T wrote > >>> > >>> > >>>>>>>Honda no longer recommends the use of 10W-30. > >>>>>>> > >>>>>> > >>>>>>holy crap! did all other previous honda owners of > >>>>>>earlier models were > >>>>>>notified of this??? is there a national bulletin sent to > >>>>>>the owners of > >>>>>>manual-clutched hondas that state to use > >>>>>>honda-only-approved manual > >>>>>>transmission lube??? > >>>>> > >>>>> > >>>>>well /you/ clearly missed the memo. > >>>> > >>>>Where was this memo? Because here in r.a.m.h is the first > >>>>I've heard of the concept. You'd think if it was that > >>>>horrid a problem, there would be a TSB or something sent > >>>>out to all Honda owners, like they do with recall notices. > >>>>If I didn't read TeGGeR's posts, I'd never know any > >>>>better. I can't imagine my 3gee's tranny is going to fall > >>>>out because I just topped it up with 10W30... > >>> > >>> > >>>Not to be too impertinent, but I think the good fellows are > >>>playing around with you and others a bit. Here's all the > >>>official documentation I have sen on this subject. > >> > >>Yabbut, that all applies to newer cars. The shop manual AND owner's > >>manuals for my '87 Accord all specify standard motor oil - I don't > >>even know if Honda had their own MTF in '87. Jim and Tegger are going > >>on as if continuing to use 10W-30 is going to cause my car to blow up > >>or something. > > > > > > > > The oil manufacturers have lessened the "ep" or extreme pressure > > additive in motor oils at the request of car manufacturers because the most > > prevalent additive used a zinc compound, and that shortened the life of > > catalysts (and maybe o2 sensors). > > The ep additive is not really important in an auto engine except in very > > high revving engines at the cam to follower interface where there is > > usually not a hydronamic condition, i.e. the parts are not entirely > > separated by an oil film. > > They are needed in a transmission, however. If you do not want to buy > > Honda trans lube do some research into motorcycle oils as they have > > identified this problem and many motorcycle oils have more ep additives, > > but are probably just as expensive as Honda's trans oil. > > If you drive normally and do not drive at 100 mph plus you can probably > > do without the additives, but even if it added $20 to the cost of a trans > > oil change I would do it, trans repairs are too expensive to risk. > > When '87 manuals were printed engine oil had enough ep additives to work. > > Honda is on the ball and trying to protect your transmission, you should > > listen in this case but a little scepticism is a good thing, I don't think > > and have not been able to find out if the brake fluid they use is special > > in some way. Anybody know why we should pay extra for Honda brake fluid? > > Yes yes, I've been paying attention, I understand all the reasoning. I'm not > talking about putting motor oil in a car that Honda says should have their MTF. > > As I said elsewhere, my 87s have always run 10W30 in the tranny (actually, one > had a mix with 20W50 for a while, because that's all I had to top up with after > changing the CV shafts), none has ever failed me, over nearly a million and a > half combined kms, and I don't see Honday jumping out to tell me I should do > otherwise or "suffer the consequences". Yes, their MTF may be "better", but > HONDA isn't saying that I shouldn't be using 10W30 anymore, or that I should be > running out to drain every last drop of 10W30 from my tranny and replace it > immediately with MTF. > > If Honda isn't that concerned about it, I don't know why everyone else here is. Uh, what is being discussed is the fact tha engine oil formulation has been changed making the recommendations in old vehicle operator's manuals obsolete thus you proceed at your own risk. Fortunately, since engine oils were originally recommended, modern synthetics are the best candidate for extended tranny life. It's that simple... JT     
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