Engine oil Mobil or Shell

i use 0w-40 on my vr6 with 80K miles. runs fine

Put in 4.0 US Qts. of 0W-40 Mobil 1 (extra due to larger filter). Started the car briefly to check for leaks. Based on my measurement, with the new larger filter, 4.0 quarts will bring you to about 60% up the crosshatching on the dipstick. So, I added another 1/4 quart (8 oz) and that seemed to bring it right to the top. So, 4.25 quarts is what I will be going with in the future.

To bad Walmart stopped stocking Mobil Delvac1. $32 + tax for 4L of full synthetic. Probably one of the best, if not the best oil for Pre PD TDI's...

Lately, I've been using the Rotella Synthetic 0w40 which is available at Canadian Tire. It conforms to the required specifications for the non-PD engines.

Canadian Tire sells Shell Rotella SB full synthetic. Great for our TDI's....

I bought a case of Delvac1 5W40(4x4L) Synthetic at a distributor not too long ago for $128 tax included. On a side note, it was cheaper to buy the Delvac1 than the Mobil 0W40!

As for oil, I suggest using Mobil 1 0w40. They recently started carrying this in town and my mpg has improved with it.

I switched to Mobil1 5w-30 shortly after purchasing my 99.5 1.8T and I haven't had any problems, as a matter of fact my cold-weather starts noticeably improved and oil temperatures seem to be consistently lower during normal operating conditions.

changed my oil two weeks ago to mobil 1 5w30 and she runs very smooth

I switched to Mobil1 synthetic. The factory fill oil is 0w30. I replaced it with Mobil1 0w40, it complies with all of the specifications, and is not that expensive.