Skip to content

🚗 Your People Are Here. Get In.

The internet is full of car content. This is the community.

Cheers & Gears has been bringing enthusiasts together since 2001. Join the conversation, show off your garage, and find your people.

Best Fuel for new 4.6 L Northstar V-8 engine

Featured Replies

I just bought a Buick Lucerne that has a 4.6L Northstar V-8 and I was wondering what grade of fuel would be best for it. This is to seek maximum fuel economy, performance and engine life. I want to keep this vehicle for several years so I want to use fuel that will help with overall longevity.

Also, what engine oil would be best for long term operation and economy.

The northstar runs on regular, but you get more power out of premium. For everyday driving, regular is fine.

For oil, use Mobil 1. I think these are still 8 quart engines, so an oil change can get costly.

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

Latest News

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.