Comments on: Will Switching to Synthetic Oil Give You Better Gas Mileage?

By: David Horsley

David Horsley — Sat, 27 Aug 2011 14:27:45 +0000

Don’t buy the Royal Purple hype. I’ve been a Mobil 1 user on several different vehicles for many years now. An ’01 Suburban, ’05 Grand Caravan, ’06 Silverado 5.3, ’07 Silverado 5.3, and fairly soon, a ’11 Toyota Tundra 5.7. On the two Silverado’s I decided to trust the engine oil monitoring system and only change the oil when it got close to the 0% mark, anywhere from around 9000 miles to 12000 miles. On the ’07, I got talked into trying the Royal Purple, so I bought a case (two oil changes worth) and a couple Royal Purple oil filters. Liked the literature on the filters, and they weren’t any higher than other premium filters, but the oil offered me 0% difference in fuel economy. My ’07 had the high end electronics where you could see instant mileage readings, as well as mileage per tank, every tank. I’ve always watched those numbers, on a quest for better mileage in my trucks, and the Royal Purple offered no better mileage, and I even felt that my mileage might have slightly dropped. And I don’t even buy the fancy Mobil 1, just the regular full sythetic that you get at Wal-Mart in the 5 quart jugs, plus an extra quart for the Silverado. I’m not saying Royal Purple is a “bad” oil, just not any better than Mobil 1 in my opinion, and definately not worth the higher price.

By: Mentallect

Mentallect — Wed, 02 Mar 2011 19:24:58 +0000

Using Royal Purple or Redline (GroupIV) true synthetic oils with syntheic base stock gets you at least 3 mpg over Mobile I, Pennzoil, and other (Group III) “American Synthetics” because true synthetics like those in Europe are created in a lab, nad are not expensive dino oil with a few addictives like American Synthetics. Additionally, true synthetics last at least 10,000 miles and some last over 20,000. My Camry is changes once a year, and now with over 200,000 miles, it does not burn a 1/4 a quart every 3,000 miles. I’ve only used Royal Purple when I found out Mobil 1 started using dino oil instead of lab synthetic. My car had about 30,000 miles then. If you use Royal Purple or Redline, your engine will be quieter, and your mpg will increase. My cousin says he gets around 5 mpg more now on the highway than he got using non-synthetic Pennzoil.

By: Michael Montemayor

Michael Montemayor — Tue, 05 Jan 2010 00:45:57 +0000

I drive a 2003 Ford F150 with a 5.4 Triton V8 with 97,xxx miles on it. My father started using synthetic oil months ago. I drive at a constant 50 miles per hour, and only use premium gasoline. and i always get 19.5 miles to the gallon or better. when i drive on the highway I can get at the most 26 and thats doing 80.

By: Earl

Earl — Mon, 14 Jul 2008 00:56:40 +0000

With oil at the high prices today. Would it make sense to have all autos run on Synthetic oil? Would this save oil? Also, why don’t we have all cars run on one type of gas? If the gas formula is change for air quality issues, why don’t we just use this formula all the time and save money at the front end of the chain?
Big C thanks for the response to the 1st question.

Earl

By: Big C

Big C — Sat, 12 Jul 2008 22:20:22 +0000

Synthetic oil is still made with the same organic chemicals (hydrocarbons) as conventional oil. The main difference is that each of the particles of the conventional petroleum are broken down and then reassembled so that every single particle is the same size. This makes the oil much more stable in the long term even with the accumulation of soot (what makes the oil dark).

By: Earl

Earl — Sat, 05 Jul 2008 17:33:31 +0000

I have a question,is Synthetic Oil made with out any real oil being used??
Thanks

By: Synthetic Oil - Does It Increase Gas Mileage? ~ The Blade by Ron Schenone, MVP

Synthetic Oil - Does It Increase Gas Mileage? ~ The Blade by Ron Schenone, MVP — Sun, 08 Jun 2008 20:31:40 +0000

[...] I have recently surfed the Internet trying to find out if using synthetic oil will increase gas mileage. After reading more material than I thought would be available about this subject, it is difficult to find any absolutes, since everyone has a difference of opinion. The reason synthetic oil will probably help you achieve greater gas mileage is due to the fact it tends to lubricate your car’s engine better than conventional motor oil. Because of the better lubrication, there tends to be less friction within the engine, which causes the engine to run more efficiently, helping you achieve greater gas mileage. Source. [...]

By: Pal

Pal — Fri, 08 Jun 2007 21:06:37 +0000

I have a Scion xB which has a 5k interval for regular oil changes, but as I use synthetic and change my own oil and filter it’s every 10-12k, as the oil is rated for 15k. It’s more expensive yes, but done half the time so not quite so bad.