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put oil designed for diesel into my petrol car
Did this in jan, I did notice some fuel efficiency issues, car was running a bit rich but I put heavier wider wheels on around the same time so I assumed it must be the wheels that are causing the poor fuel effciency.
Also have some lambda sensor issues, car saying that the post catalyst lambda has "open circuit" whatever that means.
Can these problems be caused by the wrong oil? I read that diesel engines just use a higher grade of oil as they run hotter. Diesel oil is find for both petrol & diesel engines but the petrol oils should only be used in petrol cars.
Any thoughts?
Comments
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Trade garages by oil by spec, it is only consumer bottles that tend to have Diesel or petrol listings, so if it meets or exceeds the required spec, it is oil.Be happy...;)0
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the viscosity is fine. (5w30),
the spec on the manual on my car is vw 503 00, the spec on the bottle was vw 504 00 & vw 507 000 -
Look here http://www.oilspecifications.org/volkswagen.php
504 00 replaces 503 00
What is LongLife III oil?
LongLife oil is a high grade, fully synthetic oil with increased resistance to ageing at high temperatures. When LongLife servicing was originally introduced it was generally designated SAE 0W-30 and met Volkswagen standards 503 00 for petrol engines and 506 00 and later 506 01 for diesel engines. With the introduction of new emission limits for passenger cars in 2005 requiring the fitment of exhaust gas after-treatment devices, Volkswagen have upgraded their LongLife specifications to 504 00 for petrol and 507 00 for diesel. LongLife oils meeting 504 00/507 00 are now SAE 5W-30 viscosity. Apart from a few exceptions*, these new specifications replace the earlier 503 00/506 00/506 01 specifications. Oils meeting the new specifications are designed to work with the latest emissions control equipment, such as diesel particulate filters (DPF). Use of oil which only meets earlier LongLife specifications can halve the life of a DPF.Never associate with idiots on their own level, because, being an intelligent man, you'll try to deal with them on their level - and on their level they'll beat you every time.
Being hated by idiots is the price you pay for not being one of them.
Jean Cocteau 1889-1963
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Look here http://www.oilspecifications.org/volkswagen.php
504 00 supercedes 503 00
thanks for that, at least the oil is partially compatible, however the vw 507 00 spec casts a bit of doubt because 507 is specifically for diesels.
Which leads to the original question, is diesel oil suitable for both diesel and petrol all across the board or not?0 -
The main difference between modern diesel and petrol oils is the colour of the bottle. The edit in my post is from a vw pdf that I cannot do a direct link to. The oil you have covers the requirements of both 504 00 and 507 00. The specification 504 00 is what the oil needs to meet, an oil can meet or exceed any number of specifications.
Never associate with idiots on their own level, because, being an intelligent man, you'll try to deal with them on their level - and on their level they'll beat you every time.
Being hated by idiots is the price you pay for not being one of them.
Jean Cocteau 1889-1963
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I'd certainly change it for peace of mind, but both oils are broadly the same and as your engine warning light hasn't popped on, the additional additives in diesel lubrication oil don't appear to have poisoned your cat (the only major problem I can foresee). Indeed with their higher detergent qualities, you may find the oil comes out blacker but you have cleaner galleries now as a bonus.0
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Similar question - can I use oil designed for an "older" diesel in an 05 plate diesel?0
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The oil purchased is not a specific diesel oil, it is an oil that meets the manufacturer's (revised) specification for you car. In the "old days" standard mineral oils had lots of detergents added to make them suitable for diesels, modern synthetics do not need that. I remember when Castrol first brought out Magnatec they had problems selling it to diesel owners so they came up with GTD Magnatec, the same oil but in a black bottle.
Never associate with idiots on their own level, because, being an intelligent man, you'll try to deal with them on their level - and on their level they'll beat you every time.
Being hated by idiots is the price you pay for not being one of them.
Jean Cocteau 1889-1963
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Depends on the specification of oil required for the car. If the engine is knackered then anything slippery will do but if it is a good clean runner then stick to what is specified in the handbook.JimmyTheWig wrote: »Similar question - can I use oil designed for an "older" diesel in an 05 plate diesel?Never associate with idiots on their own level, because, being an intelligent man, you'll try to deal with them on their level - and on their level they'll beat you every time.
Being hated by idiots is the price you pay for not being one of them.
Jean Cocteau 1889-1963
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Diesel oil tends to have more detergents. If you know its the wrong oil why have you not changed it?Censorship Reigns Supreme in Troll City...0
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