From: Cicero on
On Tue, 20 Jul 2010 18:31:22 +0100, Conor wrote:

> On 20/07/2010 18:25, Cicero wrote:
>>
>> I've just bought a car (Peugeot 306 Diesel - Meridien) and will be
>> doing a general service. I usually use flushing oil after draining the
>> oil. The problem is that the recommended engine oil is semi-synthetic
>> or full synthetic but I can't find a flushing oil which states that
>> it's suitable for flushing engines requiring these types of oil.
>>
>> Is there any risk of damage using a generic flushing oil especially as
>> the recommended usage is to run the engine for up to 30 minutes on
>> tickover?
>>
>> For this time I'm going to be using a flushing additive but would
>> prefer a full flush sometime in the future. Any suggestions for a
>> suitable flushing oil most welcome.
>>
> I thought flushing oil was supposed to be added to the existing oil
> prior to draining it?

==============================================================================

Not generally. The general usage is to drain and then put in a full
gallon which would obviously not be possible without draining first. One
oil I've used in the past is sold as half gallons which is supposed to be
used on its own - a bit dodgy I think.

The additive I mentioned is only 300ml so that may be what you're thing
of.

Cic.



--
===============================================================================
Using Ubuntu Linux
Windows shown the door
===============================================================================
From: Cicero on
On Tue, 20 Jul 2010 17:38:10 +0000, Cicero wrote:

> On Tue, 20 Jul 2010 18:31:22 +0100, Conor wrote:
>
>> On 20/07/2010 18:25, Cicero wrote:
>>>
>>> I've just bought a car (Peugeot 306 Diesel - Meridien) and will be
>>> doing a general service. I usually use flushing oil after draining the
>>> oil. The problem is that the recommended engine oil is semi-synthetic
>>> or full synthetic but I can't find a flushing oil which states that
>>> it's suitable for flushing engines requiring these types of oil.
>>>
>>> Is there any risk of damage using a generic flushing oil especially as
>>> the recommended usage is to run the engine for up to 30 minutes on
>>> tickover?
>>>
>>> For this time I'm going to be using a flushing additive but would
>>> prefer a full flush sometime in the future. Any suggestions for a
>>> suitable flushing oil most welcome.
>>>
>> I thought flushing oil was supposed to be added to the existing oil
>> prior to draining it?
>
>
==============================================================================
>
> Not generally. The general usage is to drain and then put in a full
> gallon which would obviously not be possible without draining first. One
> oil I've used in the past is sold as half gallons which is supposed to
> be used on its own - a bit dodgy I think.
>
> The additive I mentioned is only 300ml so that may be what you're thing
> of.
>
> Cic.

==============================================================================

Is this a record? I seem to have sent the same reply four times - no idea
how, but apologies to anybody who thinks their drink has been spiked.

Cic.



--
===============================================================================
Using Ubuntu Linux
Windows shown the door
===============================================================================
From: Chris Whelan on
On Tue, 20 Jul 2010 17:25:18 +0000, Cicero wrote:

> I've just bought a car (Peugeot 306 Diesel - Meridien) and will be doing
> a general service. I usually use flushing oil after draining the oil.
> The problem is that the recommended engine oil is semi-synthetic or full
> synthetic but I can't find a flushing oil which states that it's
> suitable for flushing engines requiring these types of oil.
>
> Is there any risk of damage using a generic flushing oil especially as
> the recommended usage is to run the engine for up to 30 minutes on
> tickover?
>
> For this time I'm going to be using a flushing additive but would prefer
> a full flush sometime in the future. Any suggestions for a suitable
> flushing oil most welcome.
>
> Cic.

My understanding is that flushing oil is considered unnecessary these
days; modern oils already have detergents in them. In a very dirty
engine, they may do more harm than good.

Better to save the cost, and use it to increase the frequency of changes
IMHO.

Chris

--
Remove prejudice to reply.
From: Chris Whelan on
On Tue, 20 Jul 2010 17:43:15 +0000, Cicero wrote:

[...]

> Is this a record? I seem to have sent the same reply four times - no
> idea how, but apologies to anybody who thinks their drink has been
> spiked.
>
> Cic.

Not using Pan as your newsreader by any chance?

Chris

--
Remove prejudice to reply.
From: Adrian on
Chris Whelan <cawhelan(a)prejudicentlworld.com> gurgled happily, sounding
much like they were saying:

> My understanding is that flushing oil is considered unnecessary these
> days; modern oils already have detergents in them. In a very dirty
> engine, they may do more harm than good.
>
> Better to save the cost, and use it to increase the frequency of changes
> IMHO.

Agreed. Usually snake-oil flogged by unscrupulous garages as a nice easy
high-margin upsell.
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