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Shell Rotella 30w T1 Orange exhaust residue #4503021
08/31/17 06:56 AM
08/31/17 06:56 AM
Joined: Aug 2017
Posts: 3
Wisconsin, USA
Sepress1 Offline OP
Sepress1  Offline OP
Joined: Aug 2017
Posts: 3
Wisconsin, USA
I am experimenting with this oil in air cooled warm/hot weather engines. I am noticing an orange or tan, but more orange, residue around exhaust area of test equipment. Never seen anything like this with any other oil. Thoughts?
New here as you can see, so I appreciate any patience required.

Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503033
08/31/17 07:16 AM
08/31/17 07:16 AM
Joined: Mar 2017
Posts: 5,404
Soviet State of Washington
PimTac Online content
PimTac  Online Content
Joined: Mar 2017
Posts: 5,404
Soviet State of Washington
Could it be the fuel? Many years ago, some local off brand stations in my area were selling gasoline with a reddish hue. The explanation was that the refinery which was local also used a certain clay type of filtering. It left a reddish orange color on carburetor parts and exhaust also if you used it often.

The oil could only be blamed if your engine is burning it but with that color I would bet on the fuel.

Any additives in the fuel?


2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter

Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503045
08/31/17 07:35 AM
08/31/17 07:35 AM
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,480
Ontario, Canada
Octane booster will leave an orange/red residue.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503136
08/31/17 09:07 AM
08/31/17 09:07 AM
Joined: Apr 2014
Posts: 608
MN
ironman_gq Offline
ironman_gq  Offline
Joined: Apr 2014
Posts: 608
MN
Any chance it's flash corrosion?

Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503191
08/31/17 10:08 AM
08/31/17 10:08 AM
Joined: Aug 2017
Posts: 3
Wisconsin, USA
Sepress1 Offline OP
Sepress1  Offline OP
Joined: Aug 2017
Posts: 3
Wisconsin, USA
"Sea Foam" is only additive. i will try pure fuel from a different brand.

Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503296
08/31/17 11:59 AM
08/31/17 11:59 AM
Joined: Feb 2015
Posts: 2,197
Slovenia EU
Kamele0N Online sick
Kamele0N  Online Sick
Joined: Feb 2015
Posts: 2,197
Slovenia EU
Red or yellow tan on a muffler often shows that gasoline was not sulphur free....


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4503602
08/31/17 05:22 PM
08/31/17 05:22 PM
Joined: Feb 2011
Posts: 6,718
Hudson, NH
LeakySeals Online content
LeakySeals  Online Content
Joined: Feb 2011
Posts: 6,718
Hudson, NH
The inside of my Escalade tailpipe is orange. From rust. No carbon to protect it. No oil consumption at all


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: Shell Rotella 30w T1 Orange exhaust residue [Re: LeakySeals] #4503718
08/31/17 07:04 PM
08/31/17 07:04 PM
Joined: Sep 2004
Posts: 96
South La
passgas55 Offline
passgas55  Offline
Joined: Sep 2004
Posts: 96
South La
It is a shame Shell would at least put an SL rating on T1. I had a brand new mower and did not get the Shell 30wt because of it.
I can't see where this would cost them a lot of money.

Re: Shell Rotella 30w T1 Orange exhaust residue [Re: Sepress1] #4505352
09/02/17 11:23 AM
09/02/17 11:23 AM
Joined: Aug 2017
Posts: 3
Wisconsin, USA
Sepress1 Offline OP
Sepress1  Offline OP
Joined: Aug 2017
Posts: 3
Wisconsin, USA
interestingly, the fuel was regular grade from a Shell station


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