> Just got an 03 Odyssey. The manual says to use a detergent oil. What
> exactly is a detergent oil. What brands of oil are a detergent oil? Does
> someone make a synthetic or synthetic blend of detergent oil? Maybe I
> should stick with Honda oil? Any thoughts on this would be great.
>
> Brian
>> Just got an 03 Odyssey. The manual says to use a detergent oil.
>> What exactly is a detergent oil. What brands of oil are a detergent
[quoted text clipped - 7 lines]
> convenience stores. Never use that junk! It wasn't any good in 1940
> and it still is no good today :).
Lawnmowers still use straight 30wt non-detergent oils. I have a quart
bottle of the stuff on my shelf.
This is a good time to mention never to waste your money on those
"premium" lawnmower oils. They're just 30-wt non-detergent, at twice the
price.

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zonie - 11 Oct 2006 04:33 GMT
Whats the reason for non-detergent oil in lawn mowers? My Honda mower calls
for 10w30 oil.
Scott
scott - 11 Oct 2006 05:24 GMT
>>> Just got an 03 Odyssey. The manual says to use a detergent oil.
>>> What exactly is a detergent oil. What brands of oil are a detergent
[quoted text clipped - 14 lines]
> "premium" lawnmower oils. They're just 30-wt non-detergent, at twice the
> price.
Actually no small engine (mower) manufacturer still recommends non
detergent oil,and lawn mower engines have come a long way via prodding by
the E.P.A. , believe it or not some engines on commercial mowers now come
with Bosch designed E.F.I. with computerised engine control, o2 sensors and
M.I.L. lights just like a car. Also, hydraulic lifters, some have catalytic
converters, and other advanced features.
However, I will admit in a $99 mower the non detergent oil won't hurt if
changed often, but when a serious 25-30 hp engine replacement costs $1700
and up don't take chances, use good oil.
Scott
jim beam - 11 Oct 2006 19:24 GMT
> "TeGGeR�" <tegger@tegger.c0m> wrote in
> news:Xns9858E63C77913tegger@207.14.116.130:
[quoted text clipped - 28 lines]
> and up don't take chances, use good oil.
> Scott
non-detergent oil is recommended for mowers because it doesn't emulsify
as bad when water gets into the crank case - as happens when they get
left out in the rain, then stored in a garage all winter.
scott - 11 Oct 2006 20:25 GMT
>> Actually no small engine (mower) manufacturer still recommends non
>> detergent oil,and lawn mower engines have come a long way via
[quoted text clipped - 12 lines]
> emulsify as bad when water gets into the crank case - as happens when
> they get left out in the rain, then stored in a garage all winter.
Jim, your information is very much out of date. The oldest service
bulletin from Briggs and Stratton I could easily lay my hands on was from
1990 and even back then, 16 years ago they recommended detergent oil.
If you have a current owner's manual for your mower I would suggest you
read it.If you (or any one else)are interested I will try to find a link to
he service bulletins that apply.
Please don't take offense, I just had to say something as it is my job
to deal with misconceptions like this daily.
Scott
jim beam - 11 Oct 2006 21:09 GMT
>>> Actually no small engine (mower) manufacturer still recommends non
>>> detergent oil,and lawn mower engines have come a long way via
[quoted text clipped - 22 lines]
> Scott
>
no offense taken! i hardly ever mow the lawn, and read the manual even
less. i have however had to fix a crank case full of congealed
mayonnaise...
TeGGeR® - 12 Oct 2006 02:26 GMT
> Jim, your information is very much out of date. The oldest service
> bulletin from Briggs and Stratton I could easily lay my hands on was
> from 1990 and even back then, 16 years ago they recommended detergent
> oil.
My nearly brand-new Tecumseh-engined mower's manual says I can use either
straight 30-wt or 5W-30 motor oil. My choice. In fact, it came with a 20oz
bottle of that "premium" 30-wt lawnmower oil.

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John Horner - 15 Oct 2006 18:19 GMT
>> Jim, your information is very much out of date. The oldest service
>> bulletin from Briggs and Stratton I could easily lay my hands on was
[quoted text clipped - 4 lines]
> straight 30-wt or 5W-30 motor oil. My choice. In fact, it came with a 20oz
> bottle of that "premium" 30-wt lawnmower oil.
Ah, but it didn't say to use non-detergent oil, did it? Tecumseh is
saying you can use a fully formulated straight 30 or multi-grade 5W-30.
I don't think there even is such a thing as a non-detergent
multi-grade oil. That non-detergent SA crap is straight weight.
In 2004 the auto makers association did a big test of the impacts of
using SA oil in modern engines by doing detailed comparison tests. They
are really trying to get that junk off the market so that fools who buy
the cheapest thing on the shelf at their local convenience store don't
grenade their engines. Have a look:
http://www.ilma.org/resources/impact_lowqualityoils.pdf
John
John
TeGGeR® - 16 Oct 2006 12:25 GMT
>>> Jim, your information is very much out of date. The oldest
>>> service
[quoted text clipped - 9 lines]
> saying you can use a fully formulated straight 30 or multi-grade
> 5W-30.
On better reading of the Tecumseh manual, I find you're right.
The manual specifically mentions detergent oil, and specifies that the
label should say API SL/SJ.
> I don't think there even is such a thing as a non-detergent
> multi-grade oil. That non-detergent SA crap is straight weight.
Yes it is. And it says "non-detergent" on the label.

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John Horner - 15 Oct 2006 18:13 GMT
> Lawnmowers still use straight 30wt non-detergent oils. I have a quart
> bottle of the stuff on my shelf.
>
> This is a good time to mention never to waste your money on those
> "premium" lawnmower oils. They're just 30-wt non-detergent, at twice the
> price.
You are a little out of date on that Tegger, by decades. Most small
engines now specify at least SH rated motor oils not that old SA junk.
(The current US automotive minimum spec is SM).
For example, you can look at page 70 of the PDF for a typical Honda
consumer lawn mower owners manual and see that the recommended oil is
SAE 10W-30, SH or SJ rated:
http://www.hondapowerequipment.com/OWN_LAW/own/31VB4610.PDF
I picked this manual because it is readily available online, stay on
topic as a "Honda" and is typical of modern equipment. You will find
the same kind of recommendations for Briggs & Stratton, Kawasaki, John
Deere, etc.
If you are putting that SA rated non-detergent junk in your small
engines you are not doing them any favors!
John