Oil,

Jim Hanig · 06-27-2017, 05:40 PM

How many racer have switched to synthetic oil,and why did you find a performance gain? Longer time between changes ,did the engine look better at tear down.If you believe the oil guys it s 40 % better. so does that mean i only need to change every 2 years?. thank for any answer. Jim Hanig

Myron Piatek · 06-27-2017, 07:22 PM

While I haven't done dedicated comparisons, I have personally seen several benefits in the course of my switch to Amsoil synthetics over the years. I've read and seen enough elsewhere to convince me to switch and stay with it. My engine builder's recommendation was al major factor.

* An obvious operating temp. difference cruising down the highway when I went from Rotella 15-40 to Amsoil 15w-40 on a '92 Dodge diesel dually as well as a slight mileage increase. My 2004 mileage was slowly improving due to break-in before & after the switch to synthetics before 20.000, so I don't know how much was attributed to the oil. It leveled out around 30,000.

* While some of it may be a result of viscosity, when I switch from conventional 30w oil for break-in oil to 5w-20 Dominator race oil, I have to turn the idle down on the race car.

* My transmission builder has said to keep using whatever I'm using in my transmissions when I bring them in for freshening after several years even though he has his own recommendation.

* My differential guy has also said the same thing. Bearings are often reused when the ring & pinion are replaced.

* Less wheel bearing issues on my heavy open trailer and stayed with it on my enclosed trailers.

There are "different" synthetics to watch for and each manufacturer has their own recommendations. But racing is a harsh environment so I wouldn't suggest "extended" drain intervals. There is still some wear and fuel/combustion contamination. I run the IHRA circuit and several Stock/SS association and bracket races during a season and change the oil several times..

If you haven't seen it, this site may provide some interesting reading.

https://bobistheoilguy.com/

Barnstorm · 06-27-2017, 07:43 PM

We took a"poll" at the Nationals a few years back on synthetic oil and Mobil One was the one most mentioned. A lot less than most.

randy wilson · 06-29-2017, 09:33 PM

I went from regular oil to Joe Gibbs 10-30 synthetic and picked up 3 hundreths in the 1/8th, if that helps.

Tim H · 06-29-2017, 09:41 PM

Quote:

Originally Posted by Barnstorm

We took a"poll" at the Nationals a few years back on synthetic oil and Mobil One was the one most mentioned. A lot less than most.

sorry not sure what your reply means

Rsmith38 · 06-30-2017, 08:40 AM

20 degrees lower oil temp in a street Jeep stroker motor switching from conventional to synthetic (I was using Mobil 1 - available and not that expensive), This is a light loaded motor - not a racing engine - so if it reduces friction that much it is probably worth more in a performance engine!

Jim Hanig · 06-30-2017, 10:38 AM

Quote:

Originally Posted by randy wilson

I went from regular oil to Joe Gibbs 10-30 synthetic and picked up 3 hundreths in the 1/8th, if that helps.

Randy was it the same weight oil 10x30 to 10x30 . I have tried every thing from 0x5 to 10x30 not one time did i see any gain.

Ed Wright · 06-30-2017, 12:25 PM

Quote:

Originally Posted by Barnstorm

We took a"poll" at the Nationals a few years back on synthetic oil and Mobil One was the one most mentioned. A lot less than most.

"a lot less than most"?

Jim, 10W30 Valvoline to 0W10 Royal Puple "Race9" is normally 7 hundredths in mine.

randy wilson · 06-30-2017, 12:49 PM

Quote:

Originally Posted by Jim Hanig

Randy was it the same weight oil 10x30 to 10x30 . I have tried every thing from 0x5 to 10x30 not one time did i see any gain.

Yes. It helped me, but not scientific. Tried it in 3 different cars, with three different engines, and about 3 hundreths on all 3 combos.

Barnstorm · 06-30-2017, 01:22 PM

Quote:

Originally Posted by Tim H

sorry not sure what your reply means

I Meant to say less expensive than most but performed just as well.

06-27-2017, 05:40 PM	#1
Jim Hanig Senior Member Join Date: Aug 2006 Location: Pukwana SD Posts: 858 Likes: 555 Liked 97 Times in 47 Posts	Oil, How many racer have switched to synthetic oil,and why did you find a performance gain? Longer time between changes ,did the engine look better at tear down.If you believe the oil guys it s 40 % better. so does that mean i only need to change every 2 years?. thank for any answer. Jim Hanig

06-27-2017, 07:22 PM	#2
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,538 Likes: 34 Liked 132 Times in 48 Posts	Re: Oil, While I haven't done dedicated comparisons, I have personally seen several benefits in the course of my switch to Amsoil synthetics over the years. I've read and seen enough elsewhere to convince me to switch and stay with it. My engine builder's recommendation was al major factor. * An obvious operating temp. difference cruising down the highway when I went from Rotella 15-40 to Amsoil 15w-40 on a '92 Dodge diesel dually as well as a slight mileage increase. My 2004 mileage was slowly improving due to break-in before & after the switch to synthetics before 20.000, so I don't know how much was attributed to the oil. It leveled out around 30,000. * While some of it may be a result of viscosity, when I switch from conventional 30w oil for break-in oil to 5w-20 Dominator race oil, I have to turn the idle down on the race car. * My transmission builder has said to keep using whatever I'm using in my transmissions when I bring them in for freshening after several years even though he has his own recommendation. * My differential guy has also said the same thing. Bearings are often reused when the ring & pinion are replaced. * Less wheel bearing issues on my heavy open trailer and stayed with it on my enclosed trailers. There are "different" synthetics to watch for and each manufacturer has their own recommendations. But racing is a harsh environment so I wouldn't suggest "extended" drain intervals. There is still some wear and fuel/combustion contamination. I run the IHRA circuit and several Stock/SS association and bracket races during a season and change the oil several times.. If you haven't seen it, this site may provide some interesting reading. https://bobistheoilguy.com/ __________________ LOCOMOTION Racing Last edited by Myron Piatek; 06-27-2017 at 09:22 PM.

06-27-2017, 07:43 PM	#3
Barnstorm Member Join Date: Dec 2009 Location: Minnesota Posts: 186 Likes: 0 Liked 0 Times in 0 Posts	Re: Oil, We took a"poll" at the Nationals a few years back on synthetic oil and Mobil One was the one most mentioned. A lot less than most.

06-29-2017, 09:33 PM	#4
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 20 Times in 20 Posts	Re: Oil, I went from regular oil to Joe Gibbs 10-30 synthetic and picked up 3 hundreths in the 1/8th, if that helps. __________________ don,t have one

06-30-2017, 08:40 AM	#6
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: Oil, 20 degrees lower oil temp in a street Jeep stroker motor switching from conventional to synthetic (I was using Mobil 1 - available and not that expensive), This is a light loaded motor - not a racing engine - so if it reduces friction that much it is probably worth more in a performance engine!