"mack" <mackerel@[EMAIL PROTECTED]
> wrote in message
news:13kgrb08c05tq05@[EMAIL PROTECTED]
>
> "Ray O" <rokigawaATtristarassociatesDOTcom> wrote in message
> news:F5WdnU5luofA9dXanZ2dnUVZ_oytnZ2d@[EMAIL PROTECTED]
>>
>> "Doc" <docsavage20@[EMAIL PROTECTED]
> wrote in message
>>
news:5dc0688a-ca9b-40cb-9c27-7d44531e3564@[EMAIL PROTECTED]
>>> There seem to be two camps. I've seen those that advocate stomping on
>>> the engine to high revs and backing off in the initial break-in
>>> because of some alleged benefit.
>>>
>>> Then there's a more traditional school of thought, such as this post:
>>>
>>>
>>>
http://groups.google.com/group/alt.autos.toyota/msg/fbdecfe9b55b6830?dmode=source
>>>
>>> Both claim scientific reasons for their method. It seems the "flog
>>> the engine" guys say to change the oil soon after an initial run
>>> period of say 20 miles to get rid of initial metal particles, the
>>> above quoted appears to say those metal particles are beneficial.
>>>
>>> Any thoughts? Real world tests of engines broken in one way vs
another?
>>
>> Automakers generally know a lot more about their engines and how they
are
>> manufactured than the people who work in repair shops or write magazine
>> articles and blogs, so IMO, the safest thing to do is to follow the
>> automaker's break-in recommendations. I'm not sure about other
>> automakers, Toyota runs new engines to redline for a while after they
are
>> assembled, and then again on a chassis dyno as the cars are coming off
of
>> the assembly line.
>>
>> I don't necessarily follow what I preach, and when got in the 200 ~ 300
>> new cars I've driven, I just drove them the way I expected to use that
>> particular car, and experienced no engine problems.
>> --
>>
>> Ray O
>> (correct punctuation to reply)
>
> One poster said he would accelerate the engine to the redline. I'm
> clearly no expert, but I've never had the engine in either of my Toyotas
> within 1500 rpms of the redline, and in fact tend to back off on the
> accelerator to get the trans to ****ft into a higher gear as soon as
> warranted. I've got 140K on the older engine and 55K on the newer one
> with no problems and they perform perfectly. So I'll leave the
redlining
> to somebody else.
The good thing about modern electronically fuel injected engines is that
they have an engine RPM limiter to prevent damage from over-revving. An
occasional trip to redline won't hurt the engine, although a steady diet
will tend to wear stuff a little more quickly.
--
Ray O
(correct punctuation to reply)
|
