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Engine Oil For Diesel
Hi everyone,
I have a VW Bora 150PD 2003 plate and wanted to know if you can mix different makes of engine oil. I have 2 cans of semi synthetic 5w-40 one is a Millers oil semi synthetic the other is Comma fully synthetic.
Also what is the difference in semi and fully synthetic which is the best of the two?
Thanks
I have a VW Bora 150PD 2003 plate and wanted to know if you can mix different makes of engine oil. I have 2 cans of semi synthetic 5w-40 one is a Millers oil semi synthetic the other is Comma fully synthetic.
Also what is the difference in semi and fully synthetic which is the best of the two?
Thanks
Answers
Best Answer
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For more on marking an answer as the "Best Answer", please visit our FAQ.Mixing oils of the same weight/viscosity wont cause a problem but mixing mineral and synthetic past a certain ratio could be problematic ...especially if you need to claim against the warranty.Semi is blended with mineral oil and fully synthetic is considered better for some engines.However a lot of older engines were not designed for synthetic so check your service book.
You need to know what type of oil you already have in the reservoir.as BS says! not a good idea to mix. Google 'which oil for my car?' And you will get your answer.
I have a 1.6 VW diesel, and I use Shell Helix 5/30 synthetic.
May I also suggest that you carry a spare litre in the boot as VWs have a reputation for using oil faster than other models.
I have a 1.6 VW diesel, and I use Shell Helix 5/30 synthetic.
May I also suggest that you carry a spare litre in the boot as VWs have a reputation for using oil faster than other models.
Hello,
just a word of caution regarding the oil to use in your car. Your post suggests you have what is known as the "PD" engine in your vehicle. If so, make sure you buy the oil as specified by VW- these engines have an individual injector pump for each cylinder, driven off the camshaft. The oil has to withstand higher shear forces with this arrangement, and the oil spec takes care of this -the specs are shown in the handbook as 505. 01 I think from memory- this is if you do 5 to 6000 mile oil changes. For higher mileage changes, 506. 01 is the one to use. Here is one link with some useful info for you regarding this subject- Google is your friend for more info.
http:// www.hon estjohn .co.uk/ forum/p ost/?t= 15877
hope this helps.
just a word of caution regarding the oil to use in your car. Your post suggests you have what is known as the "PD" engine in your vehicle. If so, make sure you buy the oil as specified by VW- these engines have an individual injector pump for each cylinder, driven off the camshaft. The oil has to withstand higher shear forces with this arrangement, and the oil spec takes care of this -the specs are shown in the handbook as 505. 01 I think from memory- this is if you do 5 to 6000 mile oil changes. For higher mileage changes, 506. 01 is the one to use. Here is one link with some useful info for you regarding this subject- Google is your friend for more info.
http://
hope this helps.