Amsoil users step in please

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Jul 27, 2009 | 11:35 AM

MisterC

Thread Starter

Burning Brakes

Joined: Jan 2004

Posts: 1,243

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From: Rowlett Texas

Amsoil users step in please

Royal Purple claims gas mileage increase, does Amsoil make that claim?

In either case have you experienced fuel mileage increase using Amsoil?

Thanks,
Robert

Jul 27, 2009 | 12:57 PM

ByByBMW

Le Mans Master

Joined: Dec 2004

Posts: 5,759

Likes: 539

From: AZ

St. Jude Donor '06-'08-'10-'11-'12-'13 '14-'15-'16-'17-'18-'19

Quote:

Originally Posted by MisterC

Royal Purple claims gas mileage increase, does Amsoil make that claim?

In either case have you experienced fuel mileage increase using Amsoil?

Thanks,
Robert

Yes, if you prowl around their website, specifically the areas talking about their automotive oils, they do talk about maximizing fuel efficiency.
I have always used Amsoil but not because of their fuel efficiency claims but because i feel they offer some of the best product in the market.
But I have never done MPG studies so I really don't know if it has helped my fuel mileage but I have read many articles over the year about having better mileage after using Amsoil. Mostly the diesel rigs that can use every stitch of mileage increase they can get.

As always, YMMV.

Jul 28, 2009 | 11:21 AM

Bandit1

Melting Slicks

Joined: Oct 2001

Posts: 2,786

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From: Sun Devil Country

I also use AMSOIL. You may experience a slight MPG gain but only minimal if any at all. What you will notice is cooler running temps and smoother shifts. My AT and oil temps did drop a couple degrees from previous operating temps in my C5 and did the same in my C6. The rear diff chatter was eliminated with AMSOIL in both my C5 and now my C6. Can't argue with success.

Aug 1, 2009 | 04:04 PM

C66 Racing

Premium Supporting Vendor

Joined: Aug 2001

Posts: 5,364

Likes: 38

From: King George VA

When shifting my cars to AMSOIL engine oil, tranny fluid and diff fluid, I have noted an improvement in mpg, but haven't done anything definitive to prove or document this. I also feel that using their AMSPIL P.I. Performance Improver about once per month helps keep fuel injectors clean and thus improves, or maintains, mpg.

FYI, the NAD recently directed RP to modify their ad campaign:
Truth in Advertising: BP vs RP

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Aug 2, 2009 | 10:21 PM

lemans

Pro

Joined: Sep 2008

Posts: 671

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From: NY

I just tried their signature series 0-30 oil in my 09 Z about 200 mile ago.

I'm running about 10 deg. hotter oil temp, and 5 psi lower oil pressure.

Not a big deal to me as I'm guessing it's the thinner oil that's to blame.

Next oil change I'll try their 5-30 oil.

Aug 2, 2009 | 10:54 PM

Edmond

Drifting

Joined: Oct 2004

Posts: 1,281

Likes: 21

From: Orlando Florida

I use them. I like using them for the extended drain intervals, changing oil isn't a favorite thing of mine to do. I usually change every 10-15k miles. I wouldn't do that with most other oils.

Nov 20, 2009 | 01:36 PM

bobby777

Melting Slicks

Joined: Dec 2003

Posts: 2,334

Likes: 11

From: las vegas nv.

Quote:

Originally Posted by lemans

I was thinking of switching to Amsoil BUT have decided to stay with proven MOBIL1

Nov 20, 2009 | 01:54 PM

LS1LT1

Team Owner

Joined: Feb 2001

Posts: 27,254

Likes: 136

From: Short Hills, NJ

Quote:

Originally Posted by MisterC

Royal Purple claims gas mileage increase, does Amsoil make that claim?

Not sure if they make the specific claim or not but all synthetic oils by design should help increase fuel economy at least slightly.
I use Amsoil in my motor as well but never really noticed an increase over my car's already GREAT gas mileage, great oils though.