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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-18-2005, 07:48 PM   #1
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Default diesel gas

I was told that diesel gas will clean engine oil if you add a little bit in the engine compartment before you do the oil change. Is this safe?
I also just put in a bosch o2 sensor.
Why should I not use bosch o2 sensor.
What symptons will I have if the bosch o2 sensor goes bad?
thanx

1992 bonneville sse
163,000
new t stat 180
new bosch 02sensor
lets race!!!!!
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Old 10-18-2005, 08:07 PM   #2
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Bosch'* are crap, they just fail after about 1-3 months.

I myself have never heard the myth of diesel oil in the engine compartment.
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Old 10-18-2005, 10:56 PM   #3
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I wouldn't add diesel fuel to my oil. No point in risking it, when there are MANY products available on the market that help clean out gunk prior to oil changes. They work better (well, I would assume, I've never heard of the diesel thing) and you won'trun the risk of messing up your engine.
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Old 10-18-2005, 11:08 PM   #4
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oh boy

what youre thinking about is the old trick of addiding a quart of kerosene (not diesel) into your oil and running it for a while at idle to "flush" out the crankcase.

and also, bosch 02 sensors may have a bad rep here on BC but the fact is they are original equipment on many many different types of vehicles and are not junk. if people here feel there is a better alternative, they should suggest it.
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Old 10-18-2005, 11:10 PM   #5
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Better alternative- ACDelco

Bosch doesn't agree with our engines.
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Old 10-18-2005, 11:12 PM   #6
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Stick with AC Delco, or an alternative would be NGK (seems people have had luck with these).
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Old 10-18-2005, 11:12 PM   #7
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Quote:
Originally Posted by Ryan
Stick with AC Delco, or an alternative would be NGK (seems people have had luck with these).
That'* cause NGK makes the ACDelco, I think.
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Old 10-19-2005, 01:46 PM   #8
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Default Re: diesel gas

Quote:
Originally Posted by strongsun1
I was told that diesel gas will clean engine oil if you add a little bit in the engine compartment before you do the oil change. Is this safe?
I also just put in a bosch o2 sensor.
Why should I not use bosch o2 sensor.
What symptons will I have if the bosch o2 sensor goes bad?
thanx

1992 bonneville sse
163,000
new t stat 180
new bosch 02sensor
lets race!!!!!
I have used Diesel fuel, as a crankcase flush, in all my vehicles, for the last 45 years.

I add 1 quart diesel fuel, into the oil filler, let the engine idle for five minutes, and drain.
I then pour a second quart in while the first is draining out.
I leave it drip till it stops, replace the oil pan plug, replace the filter, and refill with motor oil.
( The last + - ounce left in the pan will burn off.)

It has NEVER ruined anything. My 86 Nissan ran over 188,000 miles before I sold it, in '03.
I diesel flushed it about once a year. And it never failed an Emissions inspection.

When you buy a canned "Oil flush" product.... you are getting the same diesel fuel,
with some additives, in a flashy little painted can, and pay 5 times the price, for 1/4 the amount.

Check this out..... Heated chemical flush scam :

http://www.nordicgroup.us/oil.htm#En...0Latest%20Scam

Never attempt to clean the inside of your engine with one of those engine flush procedures that many shops try to sell. ( above link) If you've been diligent about oil changes there will be no sludge. If there is a lot of sludge then the last thing you want to do is to dislodge it all at once.



Diesel fuel, is simply oil that has been refined more than motor oil and less than gasoline.
It starts off as raw crude, the first refinement produces ......
See:

http://science.howstuffworks.com/oil-refining2.htm

Saying, that a petroleum product refined one step more than motor oil, and less than gasoline, will damage an engine, is just silly.

What ISN'T silly is that if you wait till there'* high mileage before doing a flush, you can disloge stuff that might clog crucial oil passages.

DAMAGE, then gets blamed on the "FLUSH"l........instead of the "FLUSHER"! ! !

.
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Old 10-19-2005, 02:13 PM   #9
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Quote:
Originally Posted by optmusprimer
oh boy

what youre thinking about is the old trick of addiding a quart of kerosene (not diesel) into your oil and running it for a while at idle to "flush" out the crankcase.

and also, bosch 02 sensors may have a bad rep here on BC but the fact is they are original equipment on many many different types of vehicles and are not junk. if people here feel there is a better alternative, they should suggest it.
I have a suggestion
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Old 10-19-2005, 03:34 PM   #10
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thanks for the wealth of information.
diesel gas is what it is!!!!


Who wants to race???
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