Wally World auto shop
 

Sorry, nobody at Wally World will ever touch any of my vehicles. Especially my Benz.

Wallyworld typically has the 5 qt. jugs normaly for $18.00 and sometimes on sale for less. I have to change oil about every 3k miles on my superbike so I'm always on the look for the good deals on oil. Perhaps not all of them carry it but take a look for the big jugs as it's a fair bit less expensive to buy that way (about $3.75 a qt.)

As far as DIY. I always do my own oil, and bout 90% of my own maint on my cars and most of the time on the bikes. Largely for quality control (you would not belive the f-ups I found on my bike that I paid $1300 to have serviced last month at a dealer - freaking unreal).

If you think you can do it yourself, give it a go. You will know it was done right and you might find maintenance items that need attention before they become big issues. Plus it brings you A LOT closer to your car. This is also why I alwasy wash my own car. You notice new paint chips and other damage before it can get out of control. Nobody else is likely to point them out (just and example).

That's Bentonville, AR, not Benton. Benton, AR is just southwest of Little Rock and Bentonville is in the northeast part of AR(250 miles away), just as Benton, PA is probably near you in North Central PA! Just FYI.

It is totally right that even if you don't change your own oil you have to watch those people open the bottle of oil for your car. I got my oil changed by a regular oil change place yesterday and i caught them using no brand name oil which i presumed is low grade oil for my car. They also told me that my car need a new air filter. I then checked it out and I am sure it can be used for another 5000 miles. SO, never trust non-professional people on your own car....

WALMART
 

I will give you my 2 cents worth. I don't know how your walmarts are compared to the ones in my area, (TN) but I have heard stories upon stories of people taking their cars to walmart to have a simple job done like oil change and filter or changing the coolant or tranny fluid and the mechanic accidentally put oil in the tranny or coolant in the oil or vice versa or accidentally not tightening the lugs up on a wheel and the customer drive the car home only to have the wheel to come off while driving and do major damage. My brother in law is a manager at one of the walmart automotives and I would trust him to do the work, but other than that, I would let walmart touch my car whether it is a 99 s420 or a 80 Ford Escort. My opinoin is that it is like playing Russian Roulette, you may get lucky 25 times before becoming unlucky and it costing you out the butt to repair it. Thanks for reading.

Last few cases of M1 that I bought were 6 quarts. Still a really good deal at $23!

hi there, thanks for the heads up on those prices.
at that price,don't mind dumping it out sooner.
about controlling quality,it is hard to find good quality workmanship today.their is nothing like knowing the work was done right.and when things go right or you fixed a brain teezer, it feels really good.tobad about murphies law, murphy loves cars.

some thing a lot of people do ,who are diyers, is fail to bring it to a mercedes specialist once each year or two.their is nothing like a keen set of eyes to do that quick check under the car and hood.plus some times there is a recall or fix of some sort due.
have fun wrenching, oh and add a few bandaids to that tool set.
thanks
rich