SO I got my oil changed today and my mechanic told me he uses Blue Mountain which is like Peak. I am a Mobil 1 man, but he said trust me you are paying for the name. So I came home and looked it up, here are the specs. I was surprised they are so close. Let me say this is the first time I have ever heard of Blue Mountain and I have no affiliation with either company in any way. My last car had Mobil 1 full synthetic for 7 years. I did not change my oil with the mechanic I have now during that time hence never hearing of Blue Mountain oil.

Website references:
http://images.peakauto.com/arf2922_s...ic%20specs.pdf
http://www.mobil.com/USA-English/Lub...l_1_5W-20.aspx

5w-20

 

It's a personal choice. Using one synthetic compared to another isn't going to blow your engine or hurt longevity as long as you perform regular maintenance.

 

This is what gets me is I totally trusted my engine to Mobil 1 for many years then find out that an oil that is half the cost is just as good. IDK.

 

Mobil 1 hasn't been a "true" full synthetic for years now. It's nothing special.

 

I will look for that stuff for my next change

 

Mobil 1™ 5W-20
Advanced Full Synthetic Engine Oil
Product Description
Mobil 1™ 5W-20 is an advanced full synthetic engine oil designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. Mobil 1 5W-20 meets or exceeds the requirements of the industry's toughest standards and outperforms conventional oils. Mobil 1 technology comes as standard equipment in many different vehicles, including select high-performance vehicles.


But they say it is

 

Only the extended performance is a true synthetic. The regular Mobil 1 had it's formula changed years ago and is no longer a full synthetic despite what they've been falsely advertising.

 

I'm not a Mobil 1 fan boy . I switched from Motorcraft 'full' synthetic ($90 with filter) to Mobil 1 ($45 with filter) for my v6 (6 quarts). I'm on my 2nd oil change using the Mobil 1. It says its full synthetic on the bottle.

 

And you can save a ton of money on you car insurance by switching to Geico.

 

Hey, I saved $600 annually from switching to Geico. Gotta love those military discounts :-)

 

I stayed at a Holiday Inn Express last night.

 

Her is a great read on oil for the Mustang:

https://themustangsource.com/forums/...cation-532984/

I talked with an Amile Engineer and they tell me Ford has gone to a Spec -C for there performance cars. It has more Zinc and Cleaners if you will. He said they do have racing oil but Fords specs for -B and -C they don't make. He advices to stick to there specs that they are much better than alot of oils.

 

Here are the specs on the Extended performance, not much difference.





Im not bashing anyone here, but more wanting to know the real deal on all this synthetic talk when it comes to our money.

I mean Blue Mountain compared to Mobil 1 extended synthetic, is there that much of a difference?

 

I'm in the Amsoil cult.

 

Pennzoil, Castrol, Mobil 1 etc... are hydrocracked dino oil blends
http://www.bobistheoilguy.com/forums...Number=2548209

They lobbied to have the requirements changed so they could call it a true synthetic. Which its not.

 

Glad someone gets it.

 

What oils would you all recommend as true synthetic for use in our mustangs?

 

Amsoil

 

If i didn't care about price, i would use Royal Purple (have in the past) or Amsoil.

Any 'name brand' oil is going to be good oil. Just like gasoline, the 'name brands' have a lot more cleaners and additives.

Just my opinion

 

For most people, the oil won't make a difference as it takes a lot of stress (i.e. racing conditions) to put the stress on the engine and develop the level of heat that leads to oil deterioration. for daily driving, I've always struggled with buying into one oil vs another one...

Get out on a road course and drive the crap out of the car and you'll want oil that does not shear or break down quickly.

agree on the posts above regarding the M1 synthetic vs full synthetic. There are different base stocks (group III vs IV vs V) and most "synthetic" oils are III/IV blend or IV.