Agreed x 10! Mobil 1 0w-40 euro car formula is known to be a "noisy" oil on BITOG and from my experience with it, yes, the engine sounds louder, valvetrain noises, etc. (i havent used it on a TDI, though)truman said:I'm uncertain about the significance of the "engine quieter" factor. My '03 is quieter with german Castrol 0-30 and also with Rotella 5-40 than it is with Mobil TDT 5-40. I have also used PC Duron 5-40, but I don't recall the noise level being different with that one. Lab numbers show Mobil to be at the head of the class. I too like the quieter sound, I'm just doubtful that it has any particular meaning, beyond auditory satisfaction.
Thanks for the response....I never said I wanted AFL over HDD...it was a consideration. FYI, AFL and DEO seem to be a wash for 2003 and older tdis...the oil specs seems very close...I'm not concerned with that comparison. Mainly what I'm curious about is if anyone has seen a mpg increase using the 5W-30 HDD (due to it's viscosity being lower) compared to ANY of the 5W-40 Amsoil oils properly rated for 2003 and older tdis. Thanks.Bob_Fout said:Yup, you want DEO.
See my CJ-4 thread for more details about CJ-4 5w40 oils.
/EDIT. Oops, I re-read your last post. You want AFL over HDD, even though AFL is inferior to DEO .
The added MPG benefit with 30w is countered in many TDI's with oil consumption.Thunder1 said:Thanks for the response....AFL and DEO seem to be a wash for 2003 and older tdi's...the oil specs seems very close...I'm not concerned with that comparison. Mainly what I'm curious about is if anyone has seen a mpg increase using the 5W-30 HDD (due to it's viscosity being lower) compared to ANY of the 5W-40 Amsoil oils properly rated for 2003 and older tdis. Thanks.
TS glad to see you back. Can you believe that after 8 years its the same thing?TooSlick said:Brian,
It's like Groundhog Day, the movie...still debating the same issues with a different cast... LOL
TS
You still have some time to decide on an oil. Amsoil does not make an oil meeting the 507.00 spec, and may not have plans to do so. Perhaps an API CJ-4 oil like Amsoil DEO will work, but you should let others experiment on their cars before you try it in yours.HAMMER101 said:I have 27000 miles on my 09 Jetta Wagen and run amsoil in everything. I have drove over 250,000 miles on my last 5 cars running amsoil no engine or trans problems what is the best oil for this car when I am out of warranty?
In the real world, how many millions of miles would you have to drive before the difference between 1.0% and 0.6% became apparent? And in the meantime, wouldn't the lubricating qualities of the two oils be more significant? If the CJ-4 oil has a more robust additive package and a higher TBN, wouldn't that more than offset a slightly higher level of sulfated ash? (especially if the oil stays in the crankcase where it belongs -- where it should stay if the engine has been broken-in properly)TooSlick said:I suspect the second generation VW505.01/VW502.00 oils would probably be just fine in a 2009 VW diesel, since they are already low "SAPS" products. I'm not sure I'd experiment with a CJ-4 oil though, since the Sulfated ash level is significantly higher (1.0% vs 0.6%).
TS
Thanks. Does the 505.01 designation just mean it meets VW's required specs?Bob_Fout said:It's not VW certified. It is recommended in the VW 505.01 application.
Dieselfitter said:<SNIP>
I question the legalities of vw507 spec. oils for the following reason(s):
It used to be that the owners manual would have a API specification, SJ, SF, etc. You would use what the manufacturer specified
<SNIP>
They "Claim" it is but without certification from VW/Audi who knows ........BrentRN said:Thanks. Does the 505.01 designation just mean it meets VW's required specs?Bob_Fout said:It's not VW certified. It is recommended in the VW 505.01 application.
I guess my real question is if the European Car Formula is OK to use with my 2.0L PD?
Oh I agree, the DEO is probably superb. I just went with TDT for availability. Easier to find than DEO anyway...TooSlick said:I would definitely recommend the DEO over the Amsoil European Oil for the TDI application - especially for the Pumpe Duese engines that have very high pressure, sliding contacts in the valvetrain. The DEO is thicker & the additive chemistry is much more robust than a VW 505.01 oil.