Engine oil PENNZOIL or AMSOIL

I use Pennzoil Platinum. Is it the best? Who knows, but I’ve been using it for years on several vehicles and never had an issue.

Go with ams oil I use to talk mad shit about the product but honestly I’m pretty satisfied with it because Harley’s syn 3 is just become trash leaving lifters ticking on and the bike has always had the Harley tick but it has quieted it all down. Just my opinion though..

I’m using Pennzoil Ultra Platinum, really helped how effortless my acceleration is and gas mileage.

I use Amsoil in all three, but I use their VTwin kit for my M8. Different trans, primary and engine oils.

I was absolutely amazed at how much smoother and more responsive the bike was.

Ams oil, yes it's overpriced but it is the best and going from stock HD fluids in the primary and tranny it does shift noticeably quieter and it's much easier to find neutral

I use Amsoil for all 3 and ride a 2008 H-D Softail Crossbones

I use [this for crankcase oil](https://www.amsoil.com/p/amsoil-20w-50-synthetic-v-twin-oil-change-kit--4-quarts-with-chrome-filter-hdck/) - now 4quarts = 1 gallon so there's a bit extra in this but it also comes with an oil filter.

I run amsoil. They have specific oil for all 3 holes. Seems to quiet down transmission and primary on my 01 road king

I run Amsoil signature with an amsoil or wix filter, I usually only do 3k intervals to keep the 257 happy though lol.

One step above “full synthetic” is “100% synthetic” from Amsoil. Switched years ago, car has a subtle purr.

I tried to use the Pennzoil high mileage full synthetic the most, but if I didn't have the bit extra for it, I'd get Walmarts generic full synthetic high milage. I always used a Fram full synthetic filter too, they were the only ones around me that were better quality and decent price for the time. Mine got to 200k no problems!