very quick query this one. can i use castrol gtx in a turbo diesel car? the oil has b2 on the back so i guess that means that i can? just thought i'd ask first!
thanks
RIchard
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yep B2 isnt a bad diesel spec, whats it going into?
ill have a look for you
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going into a 1994 ford escort turbo diesel 1.8. its been fed on halfords oil up to now. don't want to screw up the turbo for the sake of a few quid but if its perfectly ok that'd be great.
cheers
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I'm taking the opposite point of view with my 1993 306 turbo diesel. It's done 115,000 miles entirely on "Castrol GTX for Basic Engines", which is a 15W-40 oil.
As the car is now not worth very much, I've decided to stop spending so much on oil and have started using Peugeot's own brand - "Motaquip MQP Premium Oil for Petrol and Diesel Engines 15W-40 ACEA A2/B2/E2" - £7.44 for 5 litres from the local Peugeot main dealer.
The car's handbook recommends:
Motaquip 15W-40 Diesel Plus, and/or
Esso Superlube Diesel 15W-40,
for both diesel and turbo diesel engines, so nothing really special is required.
Your Escort turbo diesel should be perfectly OK with similar cheap oil.
Ian
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yeah it will be fine, i think gtx also meets aopi cf, anything above about a cd is fine for turbo diesels
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I was told that i shouldn't use Castrol Gtx in my TD Vectra, and opted for a semi-synth instead. Should have been fully-synth apparently but it would have cost a fortune and this Comma Semi-synth was "just as good", based on their experience.
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GTX 15/50 is really for basic engines and that doesn't usually mean turbo units due to the oil temperatures in the turbo, even though it has an API CF rating. What about using GTD or a similar diesel specific oil?
John S
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One thing you have to be sure of is that the oil is a detergent type. Diesels will produce alot of carbon around the piston rings and get clogged also stick, causing loss of compression etc. Thats where the detergent comes in to clean the carbon away, you'll notice how quick the oil blackens compared to petrol engines also why the service intervals are much shorter for Diesel.
But some of the new diesels have longer intervals, but still not as long as the new petrols. I have a Citroen ZX td 130k and use Diesel semi-synthetic more for the turbo's sake with its high operating temperature.
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Before Castrol brought out a diesel specific version of GTX (I think it was in the early 1990s), they were facing competition from other brands who had diesel specific oils. A Castrol representative was interviewed in a magazine and claimed that the standard GTX was fine in all private car diesel engines at that time, and that Castrol had only decided to produce GTD in response to consumer demand for a diesel specific oil.
The implication being that GTD was no better/worse than GTX for engines of that era.
I won't take this argument to apply to more modern cars, most of which have more stringent oil requirements.
Ian
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