Ray O wrote:
> "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.
That's a good idiot proof measure to keep most of them from over rev
damage Ray, but for the few folks that prefer to run the engine to red
line and then down ****ft, they mechanically take the engine way over red
line and usually incur engine and at times drive train damage as well
using that method. It's only money.
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