Greetings to All,

I recently did some digging in reference to Synthetic Oils that are on the market.
So far, I am finding that Royal Purple HPS (High Performance Street) Oil has the best results when it comes to reducing friction.
I have already put it in my wifes '97 BMW Z3. I used 10w40 since we don't plan on driving it in the winter and sometime it gets over 100 degrees here. I plan on putting 5w30 or even 5w40 in my HHR the next time I change the oil. I was wanting to see if anyone else had other opinions about Royal Purple Oil and/or what they use in thier vehicles.

 

What Kind of Engine Oil to Use
For Vehicles With the 2.2L or
2.4L L4 Engine
Look for three things:
• GM6094M
Use only an oil that meets GM Standard GM6094M.
• SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers on
an oil container show its viscosity, or thickness. Do
not use other viscosity oils such as SAE 20W-50.
• American Petroleum Institute (API) starburst symbol
Oils meeting these
requirements should have
the starburst symbol on
the container. This symbol
indicates that the oil
has been certified by the
American Petroleum
Institute (API).
(From the owners manual)

Not really sure why you would want to change the weight when it says "Do not use other viscosity oils."

 

I'm a fan of royal purple. My choice of more basic brand of oil would be mobile one. Although I feel they are all really the same. And I always stick with what the manufacturer says to use as ar as weight. In our new Mazda they say to use 0W/20. I'm a little skeptical of that myself.

 

I think it was beginning with the 2011 model year that GM requires oils with "Dexos" Logo on the label.
Not all oils including some synthetics have this Dexos requirement.
I use 5/30 Dexos Oil in my 2011 HHR.

 

Whopper, now you have to change your oil again. LOL

 

Tigger- I believe Royal Purple does have more friction modifiers in it. But I'm still under Powertrain Warranty & use M1........


Thats right Tyler !!!

 

I have $15 oil changes at the dealership. so I just have them put it in

 

$15??? what is it..molasses? oil changes for me are 40 for regular oil and 100 for synthetic from dealership. Cant wait for warranty to end so I can do my own oil changes for half the price

 

Used to use Royal Purple in the Lightning; lots of people bash RP-not sure why.

Anyway, now they charge $9.00/QT for the stuff, which is nuts! Using Quaker State Synthetic, which I can get on sale at Menards for $3.99/QT.

Jim

 

I was going to switch to syn.oil next change...2.2 ls panel...we had owned an 03 cavalier 2.2 til 2012, and used syn. From day one...the every 10000kms it ran like new ...gold 4dr..sold it for 4g's