What oil will you use?

[regal]

Originally Posted by fooddude

Who's running oem factory Subaru or Toyota oil?

Personal opinion is The Toyota 0w20 is a best bet if you aren't reving the crap out of it everyday.

.

Originally Posted by bluesubie

At the moment PurePlus™ Base Oil will primarily be used in our Pennzoil Platinum® line of products. However, in the future other engine oils in our portfolio may contain a percentage of PurePlus Base Oil, if required for a specific formulation. Products in the remainder of the Pennzoil portfolio will broadly continue to use conventional base oils as their primary base oil type.[/FONT][/SIZE]
http://www.bobistheoilguy.com/pennzoil-q-a/

-Dennis

So is PurePlase base GTL? I agree in prefering GTL to the GroupIV and V. Sounds more like a gimmick with a small amount in Platinum, maybe Ultra will be the real deal a low NOAK is important in any DI engine even with the port injectors we have.

[bluesubie]

Originally Posted by regal

So is PurePlase base GTL? I agree in prefering GTL to the GroupIV and V. Sounds more like a gimmick with a small amount in Platinum, maybe Ultra will be the real deal a low NOAK is important in any DI engine even with the port injectors we have.

Yep, PurePlus is Shell's marketing speak for GTL. And the NOACK on the 5W-20 is better than it is on the 0W-20 (10.5 vs 12.5). The odd thing is that the old Ultra 5W-20 had an even better NOACK at 5.0. The new data sheets:

http://www.epc.shell.com/Docs/GPCDOC...)_(en)_TDS.pdf

http://www.epc.shell.com/Docs/GPCDOC...)_(en)_TDS.pdf

Of course, 0W-20 is specced because it gives you a .25% improvement in fuel economy for the first 10 minutes of driving.

-Dennis

[Wepeel]

Originally Posted by bluesubie

The standard Pennzoil Ultra and Pennzoil Platinum are being replaced with Pennzoil Ultra Platinum PurePlus and Pennzoil Platinum PurePlus. Pennzoil Ultra has been using the PurePlus since mid-2013, even though it wasn't labeled as such. See the last link in my reply above for the Pennzoil Q&A.

-Dennis

Well I'm just glad there will be a PUPPP in 0w20. I was disappointed there was never PU in 0w20. Although maybe 5w20 might be the better choice anyway...

[viscositosis.rex]

Noack. Pennzoil Ultra is GF5. Pennzoil Ultra has a Noack approaching Red Line or Amsoil. Pennzoil Ultra Platinum is moving toward GF6. It has a higher Noack.
I say Noack is overrated-just like many used to say viscosity index is overrated. The Noack test is conducted at a very high temperature. It is not necessarily indicative of engine cleanliness.
Oils of the future will be thin. They will have high quality, moderately expensive base stocks. Additive packages will not need to be so robust. The key question will be how long before they shear beyond acceptable levels. Just one man's opinion.

[Reaper]

Amsoil dominator 30 weight. E85 and turbo'd with an 8qt oil pan.

Sent from my SAMSUNG-SGH-I747 using Tapatalk

[uEih]

Ahh. I don't know which oil brand to buy now, was going to purchase Mobil 1 then heard bad things with Subaru. Was about to buy Penzoil but some users above said don't. I don't know what else to purchase besides Redline, which is a little too expensive.

[Gords_zenith]

Originally Posted by uEih

Ahh. I don't know which oil brand to buy now, was going to purchase Mobil 1 then heard bad things with Subaru. Was about to buy Penzoil but some users above said don't. I don't know what else to purchase besides Redline, which is a little too expensive.

Seriously, you have nothing to worry about using Mobil 1 with the twins, I have 49000km on my car and it hasn't burned a drop. They are brand new design and have nothing in common with the old engines that supposedly(I say supposedly cuz it's rumoured as I have no personal experience) used to burn quite a bit of oil.

I've run Mobil 1 0W-20 AFE for the first 15000km or so before switching to Castrol 0W-30 (which isn't API certified-"could" void your emissions warranty due to the high phosphorus content=anti wear, hard on have catalytic converters) and now I'm back to Mobil 1 using their 0W-30 AFE (API certified GF5), and I'm getting a little better mileage, too early to say for certain though, as it's only been ~2000 km so far. I also have a UOA of Castrol 0W-30, that I intend to put up at some point. Anyways that's all.

[tonyfrs86]

i run mobil 1 5w-30 in my AVO turbo FRS, same that i ran in my evo X. change it every 5k along with the oil filter. not seen a single problem and oil levels stay normal

[D_Thissen]

Running Amsoil OE 0w20. Anyone heard good/bad things about it?

[reeves]

I just switched to Pennzoil PurePlus 5W-20.. I swear my engine runs smoother now

[bluesubie]

Originally Posted by viscositosis.rex

Noack. Pennzoil Ultra is GF5. Pennzoil Ultra has a Noack approaching Red Line or Amsoil. Pennzoil Ultra Platinum is moving toward GF6. It has a higher Noack.
I say Noack is overrated-just like many used to say viscosity index is overrated. The Noack test is conducted at a very high temperature. It is not necessarily indicative of engine cleanliness.
Oils of the future will be thin. They will have high quality, moderately expensive base stocks. Additive packages will not need to be so robust. The key question will be how long before they shear beyond acceptable levels. Just one man's opinion.

Have read in recent times that Noack is :
* meaningless, as your engine oil never gets to 250C and sits there for an hour (multiple times);
* not relevant for xW-20 oils as they run so cool;
* not relevant as catch can deposits are oil mist, not light hydrocarbons.

Major problem with all of these arguments is that volatility tests are there to assess the behaviours of oil that's left above the top ring, hot, and washed by air/gas flow within the cylinder.

These films, and the vapours that are released have direct access to the catalyst on the exhaust stroke, and therefore have relevance, particularly for emissions system performance.

http://www.bobistheoilguy.com/forums...ingless..._???

-Dennis

[bluesubie]

Originally Posted by Gords_zenith

Seriously, you have nothing to worry about using Mobil 1 with the twins, I have 49000km on my car and it hasn't burned a drop. They are brand new design and have nothing in common with the old engines that supposedly(I say supposedly cuz it's rumoured as I have no personal experience) used to burn quite a bit of oil.

I've run Mobil 1 0W-20 AFE for the first 15000km or so before switching to Castrol 0W-30 (which isn't API certified-"could" void your emissions warranty due to the high phosphorus content=anti wear, hard on have catalytic converters) and now I'm back to Mobil 1 using their 0W-30 AFE (API certified GF5), and I'm getting a little better mileage, too early to say for certain though, as it's only been ~2000 km so far. I also have a UOA of Castrol 0W-30, that I intend to put up at some point. Anyways that's all.

Castrol 0W-30 is indeed API certified, although it meets the older API SL spec. The phosphorus content is only slightly higher than current GF5 oils. Although, it's nearly a 40 weight at operating temp and I would only use it in a forced induction or tracked 86.

-Dennis

[Gords_zenith]

Originally Posted by bluesubie

Castrol 0W-30 is indeed API certified, although it meets the older API SL spec. The phosphorus content is only slightly higher than current GF5 oils. Although, it's nearly a 40 weight at operating temp and I would only use it in a forced induction or tracked 86.

-Dennis

I was referring to the bottle not having the API certification label. Maybe it was certified but doenst meet current gf 5 standards. That's the way I understand it. As for the viscosity yes it higher but at 12.21 Cst @ 100c it's not much higher than a traditional 30 weight and my UOA shows it sheared to 10 Cst @ 100c after ~7500 Km's. Still completely fine, but I didn't want void my catalytic converter warranty should I they crap out.

[viscositosis.rex]

Oil designers understand that it is not possible nor is it necessary to produce an oil that is both super light and has a low Noack. The lightest 0W20 oils run very clean and have Noacks around 12%. Noack is not meaningless. It is simply not as important as other factors. The threshold remains 15%, while oils are now required to be easier on emission systems, produce less sludge, and maintain cleaner pistons, amongst other things.

When Noack gets to 15% or above, the chemistry of the oil starts to change to the point that it becomes a concern. Below that level, it's not so much of a concern. Thinner motor oils are getting so good, that even the "thick oil people" on Bitog have had to adjust their thinking.