I have used Mobil 1 for 87K miles and just switched to Pennzoil Platinum Full Synthetic today. According to the people on LS1 Tech and other sites it compares right up there to Amsoil. You can get it in a 5 qt. jug at wal-mart for just under 20 bucks. About 5 bucks cheaper than the Mobil 1.

http://www.pennzoil.com/products.html

Pennzoil Platinum®
Full Synthetic w/Superior* Active Cleansing Agents

Available Grades include:
0W-20, 5W-20, 5W-30, 5W-30 Euro, 5W-40 Euro, 5W-50, 10W-30, 10W-40, 15W-50
Cleans 3X better than the leading conventional oil.**

Who it’s for:
People who want the highest level of cleaning, protection and performance that the maker of America’s #1 passenger car motor oil provides -- our ultimate clean.

What it does:
Superior* Active Cleansing Agents go beyond cleansing the oil to continuously attack potential and existing deposits. In a severe sludging test, Pennzoil Platinum® removed almost half the dirt and deposits in a dirtied engine in just one oil change.

Key benefits:

* Superior* Active Cleansing Agents help remove built-up
dirt and deposits 3X better than the leading conventional oil.**
* Unique Adaptive Molecules divide or cluster together under
extreme engine stresses of heat, shear and pressure to help
reduce oil breakdown and the resulting deposits.
* Our ultimate protection against performance-robbing deposits
that can dull engine response.
* Different grades designed to meet or exceed the toughest
automobile manufacturers’ specifications and approvals
including GM 4718M, Honda/Acura HTO-06, MB Approval 229.5,
MB Approval 229.51, VW 505.01, Porsche, and BMW LL-01.
(Specifications met vary by viscosity grade. Check product label.)

Specifications:
Meets or exceeds warranty requirements for gasoline and diesel engines
(specific viscosities for each). Consult owner’s manual to find right grade
for your vehicle.

 

thats what im on. i love it!

 

ive never had good luck with anything penzoil

 

never had any luck with penzoil.....seen ALOT of problems with people using penzoil.

i will never use it......i'll spend the extra money on the mobil 1

 

I never liked Regular Pennzoil never thought twice about buying it but have heard GREAT stuff about Pennzoil Platinum so I figured I would give it a shot. If I dont like it I am switching back to Mobil 1

 

yah keep us updated on how its doing bc with regular pennzoil oil, it shrugged my truck down and it sludged up real bad

 

Im sticking to motorcraft!

 

castrol here

 

Castrol Full Syn here.

 

I have always been told to stay away from "Pennsylvania oils" like pennzoil and quaker state.

 

nothin but motorcraft 5w30 syth blend and a motorcraft 820 filter

 

Mobil1 has worked fine for me, don't see any need to switch.

 

I like the extended changes. I might just switch back to Motorcraft though, I like changing the oil lol

 

quaker state torque and fram tough guard filter 26.99 at walmart

 

Royal Purple for everything

 

I also just got a case of Royal Purple but it's 10w30. I am waiting to hit 7000 km to put it in, then I am gonna switch all my fluids to royal purple! It's not that much more then Mobile 1

 

I would NEVER use Fram!

 

Mobil 1 5w-30 with a Mobil oil filter is what I use. I used Motorcraft before switching to the full syn.

 

Royal Purple, motorcraft filters, motul everything else.

 

Roach, keep this thread updated with how you like the PP. I have read great things about it on BITOG. Are you going to run it in the GN as well?

 

haha you said PP! lol

 

I had to sell it cause I had nowhere to keep it

 

i always change the oil after the first 1000km in a new engine....who knows how long that crap oil has been in there plus i sometimes there is some little filings from when the engine was built that are in there