Best Price of Mobil 1 Gear Oil (75-90) in North SD County?

Hello Amigos,
Anyone have knowledge of a good price source for Mobil 1 75-90 differential oil in San Marcos, Vista, Escondido, Oceanside, or Carlsbad area?
Last time I had Speed Freek change it, I got it at Pep Boys for $10.99 a quart.
We need 6 qts. (3 qts. for the back diff and 2.7 for the front + transfer case)
Thank you!
David

 

Well, I looked at the PepBoys website... The price is now $11.79/ qt. ... BUT, by placing the order online (for pickup or free delivery) there was 25% off promotion code!
$8.84/ qt. is pretty good, eh?
OK, back to your local programming!

 

Yup, and with the savings I also ordered a new air filter and cabin filter (also 25% off).. and glad I did as both were very dirty!

 

That's a good deal. In most cases I tend to shop online mostly through Amazon to get the free shipping.

 

Right! I wonder how many times PepBoys gives the 25% off price? It worked twice that day.

 

You may be on to something...

 

Thanks for the info! I got them for 25% too!

 

Cool, right?

 

I also purchased some Denso Iridium TT spark plugs a few weeks ago, and there was a 30% off coupon for rewards members. Got 6 plugs for ~$37 with tax. I will be checking for Pepboys coupons when purchasing car parts now. Thanks again!