Engine oil Mobil or PENNZOIL

I used the mobile advanced fuel economy, I live in a pretty mild climate. I have seen lots of people swear by asmoil it's supposed to be good.

From my own experiences, M1 is excellent. Been putting it in my 30 year old Celica for 7 years, gotten 160k miles out of it, 320k miles on the original motor in total. My buddy’s Corolla had a bad timing chain slap on startup, went dead silent ever since swapping him over to M1. I just stick to what I know.

OP, love the choice of Pennzoil Ultra Platinum Ultra Synthetic! Anyways, does the jug of Pennzoil Ultra Platinum seem a lot lighter than other 5 qt jugs of oil?

I’ve used Mobile 1 full synthetic for years, most manufacturers warranty it.

I *always* find Pennzoil Platinum on sale for like $25-ish/ 5qt at either O'Reilly's, NAPA, or Walmart around the time I go to do my oil change. $50-ish total oil changes, never had any issues with any of my cars.

i have a 5qt of Mobil 1 sitting around in case i ever need to take it in for warranty work.

I run Mobil 1 15w50 in Colorado in my 1.8 8v 85 GTi. For camshaft insurance I add a zinc additive at oil change time.

I use Mobil 1 15W50 zddp conent is higher than regular oil.

I just did the chains + headgasket and a bunch of other misc stuff on my Corrado earlier this year. My guides were worn pretty bad and it only had 120k on the clock.

BTW, Mobil runs hotter in my car.