I am no longer going to use Mobil 1 oils

Not because it is 'bad' oil, but because it is grossly overpriced now.
Scroll down to "controversy"...they made the Wikipedia for going Dino basestocks....
Link (http://72.14.253.104/search?q=cache:K2I8nd2BJX4J:en.wikipedia.org/wiki/Mobil+mobil+1+controversy&hl=en&ct=clnk&cd=1&gl=us&client=safari)

Mobil 1 was introduced in 1974. In 2002 Mobil B1 introduced "supersyn" anti-wear technology, followed by Mobil 1 Extended Performance in 2005 which increased the use of this technology further.
Controversy
In 2006, the results of a gas chromatography test on Mobil 1 EP 5w-30 were posted by an industry expert on the popular motor oil discussion website BITOG (http://www.bobistheoilguy.com/";). It showed the oil to be primarily composed of a less expensive, Group III hydroprocessed mineral oil. Until this time, Mobil 1 was believed to be a true synthetic, utilizing a Group IV (PAO) basestock. The release of this information has led to a backlash against ExxonMobil's lubricant products in many automotive communities. Ironically, in 1999, Mobil fought Castrol's change in formulation to a Group III basestock in motor oils being marketed as fully synthetic. Mobil claimed that Castrol was decieving their customer base, while degrading their products. The National Advertising Division of the Council of Better Business Bureaus eventually ruled that Castrol could continue to market their Syntec line as a fully synthetic motor oil. ExxonMobil currently refuses to comment on the primary basestock of their Mobil 1 series of oils.


I am going to start using either Pennzoil Platinum or VP synthetics.
http://www.vpracingfuels.com/RS530.html

that's the thing about synthetic oil, it only need to reach a certain level of impurtiy (i think it's impurity) to be classified as synthetic.

so even if it's a hydro-carbon-based oil, with certain work on its purity, it can be officially classified as synthetic. very few synthetic oils are truly synthetic. most are just cracked minerals.

True. there are a 4 or 5 "levels" of synthetic.

i think it's 5 levels, 4 and 5 are ther "true" synthetics, 1-3 can be oils made from cracked minerals.

Good to know. boycott Mobil 1.

i never used that expensive ass crap anyway

i never used that expensive ass crap anyway
Just a year ago it was worth it.

Not now.

I used it on one oil change when it was on sale, then I went back to castrol gtx.. I can't tell a difference...

Yeah, I go for whatever is on sale when I need oil.

Heh. Some people claim changing brands isn't good on engines, but I had an '88 Ranger GT w/ a 2.9L, and I swapped from SuperTech(Now tech 2000), pennzoil, valvoline, havoline you name it. I ran it 300,000 HARD miles before it started burning valves..