1 is like 27 and the other is 42. Why is that? The one i bought for my car is mobil 2000 for higher mileage cars(120k km and up).is it good?

 

The one $27 you have mentioned above is regular motor oil.
$42 one should be Synthetic motor oil.
I just purchased a bottle of 1L synthetic for $10 and a bottle of 4.4L for $35.

 

one gallon of mobil 1 synt at walmart is $22, thats where i get mine

 

^ I got those recently too. I think its the 5qt jug though. But yea Walmart at $22 is a deal.

 

what matters is that one jug is all i need for an oil change.

 

Just trying to give the right # dude....

 

you have to read the labels very carefully these days on everything
Due to a lawsuit a few years ago, oil companies are now able to use the lower grade 2 base oil in synthetic and still label it synthetic- instead of grade 1 base oil

The old good mobil 1 is now High Mileage version- so thats a good buy

The new regular mobil1 uses the old bottle style and label-which doesnt specify about the change
Its good oil - just not the mobil1 you bought a few years ago

I look for the words FULLY synthetic and check makers website to know whats in the oil.
Been on penzoil platinum for a year now, going to do a dino oil change and see if there is a dramatic mileage differance based on oil

Note on seafoaming the oil before a change- I read the website carefully
It says 1 1/2 oz of liquid seafoam per QT of engine oil
Drive min 30 minutes, max 100 miles, (unless you install a new filter then do the treatment- a new filter can catch all the crud- ok to drive farther and moniter crud and color on dipstick up to 500 miles- thats for old crudded up engines only),

Takes 30 minutes for the seafoam to liquify the crud and wash it to the filter
I just did this on my vtwin 1100 honda and the idle rpm increased 300 just from the 30 miles--freed up something!
Going to cut open the mobil1 filter from it- only had 2000 miles on it so should hold a lot of information from the foaming
Bike oil gets changed every 2000-3000 miles -ugh, and takes special $5 qt vtwin oil
with a K&N filter thats a 35$ change every few months!

 

Just found that out the other day. So much cheaper than what I was gettin for..

 

It's a synthetic blend,do i have to changed the oil to fully synthetic??

 

the engine doesnt really care what oil you run, dino- blended or fully synthetic.
can go from on to the other at each change if you want, and wont make the car run funny or blow up

 

You are right, the ones at Walmart are 5qt jugs. If i go to Kmart they have 3.78qt jugs for the about the same price as the 5qt. Those mobil 1 jugs are made just for Walmart, and at $22 you cant beat that.