depami

Don't ask me, I plead ignorance, I use Valvoline. Their site has full info and a "selection tool". And you can get it just about anywhere.


What makes you so certain BP would never change formula?

jayc67

Certainly anyone can change their formula but BP's target market is not the mass consumer, bending to whatever marketing scheme is hot that week. They target the race car types who like consistency. It's an old school "boutique" oil and not very likely to change I don't expect, it would just **** off the majority of their customers. The local dirt track parts shop close to me sells it in huge quantities. I buy a case and the counter guy is usually surprised I'm "only buying 1 case". I guess the racers use a lot

dprantl

Does anyone have any concerns about the fact that Brad Penn is a semi-synthetic blend oil instead of a full synthetic?

Dan
'91 928GT S/C 475hp/460lb.ft

SeanR

Nope

hacker-pschorr

Nope

If it was 100% non-synthetic I would still use it.

Jadz928

What he said. Plus I'll add that BP labels their product "contain high levels of zinc/phosphorus " Nothing cryptic or confusing about that.


Re synth vs semi-synth... there are many oil stating synth, that are bore from dino oil. At least BP is straight about it.

docmirror

I like Valvoline oils, but they only have 830PPM of ZDDP in their syn, and maxlife. Generally, that's not enough. There are products with 900PPM, but we like 1100-1200 for our engines.

JET951

My question is } why do the latest & greatest this century so called synthetic engine oils have any last century ( read Dino solution) ZDDP at all ?, ZDDP is not just last century , but well back into last century oil additive for Dino oils

It gets even worse with Racing so called synthetic engine oils that have a lot more ZDDP , don't get me wrong I do not mean worse in regards to how effective ZDDP is( its very effective) , I mean in regards to so called synthetic engine oils in this century , I would of thought that they would not need any of this AW addtitive or any additive for that matter at all

Why do they need an anti wear additive ? , I thought that the idea of so called sythetic engine oil was an massive advancement over the last century Dino oil , meaning keeping metal parts away from each other . like high loaded flat tappet overhead cams as an example

Or if they still need an anti wear additive ( AW package) , why not just have this century replacement AW package of say Boron or something similar only & no ZDDP ? .

So we would then read in advertising literature that "X" oil company racing oil has extra Boron AW package & no ZDDP

I kept reading from the early part of this century that ZDDP was being phased out & or obsolete , so this leads me to wondering why so called synthetic engine oils can not stand on their own two feet & not having to rely on a last century AW additive ( ZDDP )or any AW additive for that matter ?

In my humble opinion , its a bit disappointing

polecat702

Use any oil you like, just add a bottle of Rislone 4405, ZDDP oil suppliment .
Whats the big deal?

Charley B

Use any oil you like, I'm getting old and I just don't care anymore.

M. Requin

Not so. Here are the specs from the Valvoline Web site for the ZDDP 20w-50 VR-1 full synthetic I use: 0.14/0.13. That's about as high as I have found. The Product Information sheet is here:

http://www.valvoline.com/pdf/vr1_synthetic.pdf

curtisr

Charley,

When I use Quaker State conventional oil in my DD (a Chev S10) I find a foam build-up on the bottom face of the oil filler cap. Using the same 'test' with Rotella, I detect a noticable absence of foam.

RC

KLVA

Thanks Martin....just confirms what I have been thinking

I have been putting Valvoline VR-1 20w50 in the 928's for over a year

The bottle just changed labeling recently to state the it may

affect catalytic converters with long term use...did not say that last month...

Nice to finally have some info on ZDDP levels in the oil

hacker-pschorr

Because the combined additive package can be just as important as the ZDDP.

Also, even the highest additive has about 2,000ppm per bottle, usually 3/4 of a quart (if not 1/2 a quart).
You need to divide up that ZDDP over 10 quarts the 928 holds. If you are starting with an 800ppm (or lower) motor oil, the additive will not bring you anywhere near the 1,300ppm (or higher) ZDDP that most are looking for.

Honestly this whole conversation is rather moot. I have only found ONE 15w-50 or 20w-50 motor oil currently on the market (in the US) with less than 1100ppm ZDDP, and it's special order.
Unless you live in the great white north and drive your 928 to your igloo with some super thin oil in the sump, it's not as big of a concern that it use to be. If I'm incorrect in my research, please post what oil that is so we can all avoid it.

The controversy started with the GF-4 standard (now GF-5) which dropped ZDDP from the 1100 range to 800 in an effort to save catalytic converters. At the same time, most auto's in the US dropped their recommended viscosity's down to the 0w-30 range.
Yes Mobil 1 did drop the ZDDP in 15w-50 at first, they eventually realized what a bone head move that was and brought the old formula back to the shelves.

If you look at the Mobil 1 spreadsheet that has been posted a few times in this thread. All the oils with 800ppm or less are labelled GL-4.


That's still open for debate. Later studies have shown those findings may have been a bit premature.

Same as the R-12 vs R134a BS. We now know R134a is as bad if not worse than R-12 (not only can it eat away at the atmosphere, it causes cancer). Which is why the EU is banning it.

Kiln_Red

I'm not trying to be argumentative here but I worry about the validity of this statement.

It appears to me that Mobil 1 dropped 15w-50, for a short time, when they reduced the ZDDP of other viscosities. They did so considering the formula outdated since flat tappet cams have become a engineering design of the past. I am not finding any information that they reduced ZDDP in 15w-50. That would abandon what knowledge they had already gained in that flat tappet engines require higher ZDDP oils.