Castrol Edge - one for Simon?

[TW]Fox

[TW]Fox

[TW]Fox

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What is the difference between Castrol Edge 0W30 and Castrol Edge Turbo Diesel 0W30?

I have 500ml of each remaining in a 4l bottle. Can I combine them both to create a handy 1litre topup bottle which conforms to BMW LL01?

I suspect Turbo Diesel is a marketing excercise perhaps to allow Castrol to work out what percentage of the oil is used by diesel owners or something, but clarification would be good.
 
diesel oil has surfactants (detergants) which flush a diesel engine of the grime sorta like really tough fairy liquid :P, they can be quite damaging to a petrol engine, (assuming this is what your asking)
 
well if ones designed for diesel and ones standard oil they wont be surely as the diesel oil will contain detergants, unless I'm being dim :D
 
From a quick Googling, it seems that derv oil contains more detergent, and can be used to flush/clean a petrol engine. But it should only be used short term. There are other factors aswell, such as it can cause compression loss, it is less suited to preventing low temperature sludge buildup than dedicated petrol oil.

There's nothing to say it will grenade your engine, but I personally wouldn't do it for the sake of a few quid going on what I've just read.
Some bloke on another forum... said:
yes you can. For some purposes (e.g. motorcycles with wet clutches) it is even recommended, if you can't get the special oil.

However diesel engine oil is highly detergent. If you have neglected oil changes and your engine is dirty and sludgy inside, the diesel engine oil will loosen all this sludge and send it circulating round the engine. It will probably not cause a blockage because it will be ins suspension, but it might clog your filter, and you would need an extra oil change to drain it all out (which seems a waste of money)

Have a look at the label on the back. the oil will probably have two ratings, one beginning with a "C" for Compression-Ignition (diesel) engines, and one beginning with an "S" for Spark ignition (petrol engines). In this cse you can look up the "S" rating and see if it meets or exceeds that recommended by your car maker (I think you will find it does). For example it might me marked CF/SJ where SJ is the petrol-engine rating and was introduced something like 5 years ago. the second character is in aphabetical order, so SG is an older specification than SH which is older than SJ
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if its designed for a diesel or turbo diesel it contains the detergents, its obviously the same viscousity as your standard oil and tbh I cant see it doing any harm but Personally I wouldnt bother just for the sake of 500ml
 
How do you know this? Both oils conform to the same BMW specification....?

I'm after something from someone who knows for sure not guesses based on other products.
 
ok fair enough, I dont know for sure on that specific product but diesel engines do by nature produce more coke/grime etc, and as such all diesel oils contain detergents to prevent build up and blockage, if you want to be 100% I suppose you can only phone up and ask a dealer
 
Castrol say:

With regard to the EDGE Turbo Diesel 0W-30, you can use this in a petrol engine – as this also meets the Longlife 04 specification and the petrol specification is borne out by the ACEA A3 rating on the oil
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Does this mean I can mix them?
 
[TW]Fox;11331912 said:
Castrol say:



Does this mean I can mix them?
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by the sounds of it yes.

some oils you can mix no problem (notably motorbike fork oils) and i've mixed fully synth stuff for my race bike with no ill effects although it was same grade etc just different brands etc.
 
I'll check tomorrow what in them, should be no probs mixing them

They are completely different formulations though.
 
[TW]Fox;11331799 said:
How do you know this? Both oils conform to the same BMW specification....?

I'm after something from someone who knows for sure not guesses based on other products.
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For the sake of a few quid why do this.

I wouldn't have expected you to do that ;)
 
Nothing wrong with mixing oil generally. However as someone in my position there are certain components I would try and avoid mixing.
 
Tom|Nbk said:
For the sake of a few quid why do this.

I wouldn't have expected you to do that ;)
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Whats the point in going to Halfords and spending 15 quid on a litre of Edge when I've already got 500ml left in the 4 litre can used for my oil change and 500ml left in the 4 litre can used for my Dads, and when I've heard that the only difference is the label :p
 
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