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Any one have any input on Castrol GTX Diesel 15W40
by
91jettaidi
on 16 Apr, 2012 15:10
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Hey guys i've looked on the forum and doesn't look like this is a popular oil used allot of people are running Shell Rotella. I've been putting in Castrol GTX Diesel 15W40 just any input of who has used it and what you think of it. Thanks
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#1
by
CrazyAndy
on 16 Apr, 2012 15:49
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Well why do YOU think you should run this oil? How many miles on the car? I also ran rotella T on my old 1.6 NA but just because it's cheaper than GTX diesel oil where I am.
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#2
by
91jettaidi
on 16 Apr, 2012 15:58
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Well the engine has 403,000km (250,412 miles) and runs like a top. Barley burns any oil but the previous owner said he always ran synthetic. Castrol doesn't make synthetic diesel oil or at least not sold here but I just wanted some ones opinion who knows more then I do. Would I be better off running something else thats better for these old engines? Do they need a certain additive so keep them running strong? Not all oils are created equal so I just want to take as best of care of my engine as much as possible. Thanks.
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#3
by
rs899
on 16 Apr, 2012 17:27
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I would find out what the PO was running and use it.
That's pretty impressive. That Castrol is likely OK. You really have to pay attention to zinc (ZDDP) levels now. You can't assume anything. Our cams need zinc badly and it's going away.
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#4
by
91jettaidi
on 16 Apr, 2012 18:12
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#5
by
CrazyAndy
on 16 Apr, 2012 19:05
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Woah, that's actually a very informative thread! I'll admit, even being a technician I don't know nearly as much about oil additive versions and regulations as I probably should. I only have 5 grades and types of new OE-spec oil available to me, though. Still, great read when concerning oil for the the older flat-tappet, diesel-fueled, or air-cooled engines I seem to always get my hands on.
A little more on-topic, why not try ELF total synthetic? Special order, but the TDI guys seem to love it.
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#6
by
91jettaidi
on 16 Apr, 2012 19:14
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#7
by
billybobf
on 16 Apr, 2012 22:15
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here's where I will sound dumb? I always ran delo400 in my rig? was that a bad thing to do?
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#8
by
mystery3
on 16 Apr, 2012 23:58
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The delo is fine. I think the important thing is not to switch it up all the time, especially between synthetic and traditional. I used to run the synthetic rotella but now I run the elf. I run Castrol in all of my old german gasser cars though.
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#9
by
rs899
on 17 Apr, 2012 04:21
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Delo 400 used to be a great oil. But have you noticed much of it is now Delo 400LE? LE= Low Emissions= lower zinc so as not to give someone else's cataclysmic converter agita.
Doesn't do much for your cam or lifters, though.
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#10
by
theman53
on 17 Apr, 2012 06:32
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I loved Rotella T and I think it is still a great oil. Now I run schaeffers oil. They do a free oil analysis if you are running their oil and it has the good zddp and moly in it. As far as the zddp ruining the cat, it won't. That was an oil company thing whenever they all switched from Pennsylvania grade crude to the light Saudia Arabian crude. The PA crude has zinc in it. There is only one company using exclusively PA grade and that is Brad Penn. It is a good conventional oil, but not as cheap and easy to get as rotella for our diesels. If I don't run semi synth or full synth Schaeffers in my gas vehicles, I run the Brad Penn. If I run conventional in my diesel it will be Rotella. This is a link to the Schaeffers page :
http://www.schaefferoil.com/