Thanks for the question!

I’d recommend changing the oil. The proper treatment ratio is 1 ounce of Sea Foam per quart of oil in the crankcase. You don’t want to exceed that.

Another option is to drain some of the oil, and then top it off with fresh oil to bring it back to the proper ratio. Example: if a vehicle has a 5 quart oil crankcase and accidentally added 10 oz of Sea Foam, drain half of the oil and top it off with fresh oil to get back to the proper ratio.

Hey Nick,

Thanks for the question. Yes, you can use Sea Foam Motor Treatment in your 98 SR20DET. Just follow the instructions on the can.

Here’s a little more info on how to use it for specific purposes:

• Sea Foam Motor Treatment in fuel. The best way to use it is to create a high cleaning concentration of Sea Foam in fuel. I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.
• Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.

You could also try High Mileage Motor Treatment. It’s made specifically for stubborn residues and deposits in higher-mileage vehicles. It’s a great cleaner!

Thanks for the question!

Yes, you can use Sea Foam Motor Treatment in your 2014 Nissan Murano. Just follow the directions on the can.

Here’s a little more info on how to use it:

• Sea Foam Motor Treatment in fuel. I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.
• Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.

Thanks for the question! You can only put Sea Foam in your oil one time in between oil changes. Add 1 ounce of Sea Foam per quart of oil in the crankcase. Do not exceed this ratio.

The Sea Foam will work to clean and lubricate the entire time it’s in the oil. The recommended ratio is sufficient to clean. If you’re looking to get the most cleaning potential out of using Sea Foam, add it in between every oil change and it will progressively clean away oil residues and deposits.