The Driver

What would you use? Asking for real. I mean, I'd use 5W40, and maybe a 15W50, but that's just me.

Braineack

iTrader: (62)

rotella all the things!

sixshooter

iTrader: (12)

It's hard to go wrong with Rotella T6. It is good quality and has good film strength and EP lubricant additives. For 400whp out of a 1.8 I'd be considering something even more purpose designed for the kinds of forces and localized temperatures that may exist. Amsoil, Schaffer, etc. would be on my short list of boutique oils I use at 300whp. I really like the specs on Schaffer.

I have mixed Rotella T6 and Valvoline Racing VR50 in a 50/50 mix once in the summer in a pinch, but that's not an ideal situation. Rotella wasn't quite thick enough to keep the pressure on track in the heat with my loosely built bottom end.

vteckiller2000

iTrader: (4)

FWIW, I run my built vvt engine with a non-vvt oil pump and 10w30 mobil. I have pretty dead on VVT angle at all times.

The Driver

I've been using Rotella full synth, on everything I owned, for over 10 years. But the newer Rotella, does not have as much ZDDP, as the old version had.

I'll be using Royal Purple Euro version, starting with the next oil change.

sixshooter

iTrader: (12)

Yeah, depends on how tight the tolerances are in your bottom end. My motor was built by a race shop and they built it with fairly loose specs so that it would be less likely to bind and spin a bearing at extreme loads. Therefore my oil pressure stays low. I don't have VVT so that part isn't a big deal. The VVT needs pressure but the bottom end predominantly needs flow volume and oil film strength for long life.

sixshooter

iTrader: (12)

T6 has replaced zddp with other EP lubricants. I can't recall but I think Boron was one of them.

Do you have a VOA on Royal Purple Euro? I'd like to compare it with some of these others.

18psi

iTrader: (76)

I'm dying to see actual data about that "new rotella has less..." claim. Like from the back of the new jug vs old jug, not some announcement.

concealer404

iTrader: (3)

Bruh. Leafy has been posting it on the internet for years.

This is why i now run Dominator 15w50 in my unopened naturally-as-god-himself-intended aspirated motor.

thumpetto007

iTrader: (15)

My god has twin precision pro mod 106 turbos for *****.

concealer404

iTrader: (3)

The last dyno i saw out of you was about 127hp on a Venereal Disease.

sonofthehill

iTrader: (1)

I bent that stock rod on t6 and the crank was untouched, super nice for such an old beat motor.

The Driver

http://www.shell-livedocs.com/data/p...d19fffe655.pdf

The Driver

No I don't. I have a friend in Dunedin, who is a Miata engine builder, and he uses the Royal Purple Euro. If it works for him, it sure as heck works for me,

18psi

iTrader: (76)

did you understand my question? or just pulling a Leafy?

sixshooter

iTrader: (12)

Maybe he's unfamiliar with the term virgin oil analysis

patsmx5

iTrader: (16)

On my motor with 10W-30 the VVT worked great at 800 RPM idle with 210*F oil temps when it was supercharged and didn't have a turbo or two taking oil. Now with two turbos, the VVT needs about 1200 RPMs to work reliably when it's hot. I just tune the VVT so that it's active above that and it's a non-issue.

The Driver

I posted the data offered by Shell, what else do you want? Feel free to learn to use Google. After all it is you who needs convincing to use RP Euro, not me.
He didn't asked for a VOA, you did, and my answer remains no.

18psi

iTrader: (76)

If you actually read my post, I asked for a comparison of old vs new. I also specifically said that an announcement doesn't count.
You posted a leaflet of some announcement after I specifically said to post proof of what's on the shelf now. The actual product for sale now.

As in: I went to the store, bought one of the new bottles, and compared to an old one I had from before. You know, actual information on actual oil we can actually buy today. (hint: I did exactly this)

Maybe you should learn to read posts. I've used royal purple before. I'm also now willfully ignorant and stupid enough to use argument like "some guy with lots of experience uses it in some engine's he builds and it works for him, therefore my completely different car and engine should be juuuuuuust fine"

herp derp

ridethecliche

iTrader: (2)

Can this thread plz not devolve into an oil thread?

Greg, any particular reason you chose not to use shims on the stage 2 pump? AFAIK it comes default with 2 of them to increase oil pressure a bit. Wouldn't that have helped with the VVT at lower rpms?