Rotella-T synth glows in UV - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Insert BS here A place to discuss anything you want

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 01-24-2010, 10:53 PM   #1
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default Rotella-T synth glows in UV

So I am trying to trace down a slow coolant leak on this LS-1 Miata of mine. I am pretty sure it is in the radiator. But to be sure, I am doing the UV coolant dye trick.

For those who do not know, one can get a dye you put in your coolant that glows very brightly in UV light a.k.a. a 'blacklight'. You put some in your radiator, run the engine for awhile, and look for leaks with a UV light. Works great. FYI I bought the dye at the auto parts store, and the UV light at home depot. It is a compact fluorescent type bulb.

I had a serious "oh-****" moment tonight when looking around the engine in the dark with the UV light. I noticed that a small amount of oil residue around the oil filter had a slight glow to it, the same yellowish color as the radiator dye. So, even though I had seen no other evidence of coolant in the oil (milky oil, water bubbles in the oil, rising oil level, etc) I immediately start having horrid thoughts of a blown head gasket. That is, coolant has UV dye, coolant gets in to oil, oil glows.

So I check the dipstick with the UV light, and sure enough, the oil on the dipstick has the same yellowish glow. Damn it...

After hating life for a few minutes, I decide, just for grins, to see if the Rotella-T synth I have in the engine right now glows on its own. So I grab a bottle of the same Rotella-T I had put in the engine at the last oil change. There is about a quart of clean, unused oil left in it. I poured a little in the cap, and sure enough, it glowed in the UV light, the same yellowish color. A small drip of the same new Rotella that I splashed on a non-glowing surface also fluoresced yellow. I then held the capful of the Rotella and the dipstick up next to each other in the UV light, and they had the same glow to them. Same color, same brightness.

Whew... life is OK again.

So, I have no idea if this works with other oils, or what the additive is in the oil that causes this glow, but there it is. Rotella-T synth glows slightly in UV light. It is not nearly as bright as the coolant dye, but it is visible. A quick Google search makes me think it is the detergent in the oil that is glowing since some detergents fluoresce in UV. I also saw a writeup from a dry cleaner talking about using UV light to identify an oil stain on fabric.
ZX-Tex is offline   Reply With Quote
Old 01-24-2010, 11:14 PM   #2
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

So being the dork that I am, I decided to investigate further with a few lubricants sitting around the garage.
- Valvoline 80-90wt synthetic blend gear oil glows bright yellow big time, almost as much as the coolant dye.
- Mobil 1 synthetic ATF does not glow much at all, maybe a tad yellow.
ZX-Tex is offline   Reply With Quote
Old 01-24-2010, 11:29 PM   #3
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

it's probably the phosphorus in those oils
y8s is offline   Reply With Quote
Old 01-24-2010, 11:59 PM   #4
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

Could be.
ZX-Tex is offline   Reply With Quote
Old 01-25-2010, 12:43 AM   #5
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

T6 formula?
hustler is offline   Reply With Quote
Old 01-25-2010, 12:52 AM   #6
Junior Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Murphy, Tx
Posts: 182
Total Cats: 6
Default

Lots of oils fluoresce, put a potato chip under the same UV light and it'll glow the same color. It has nothing to do with the phosphorus. In fact when prospecting for oil one of the tests done on core samples is to look at them under UV. Crude oil glows a blue color, refined oils a pale green color.
Fidgitk is offline   Reply With Quote
Old 01-26-2010, 03:15 AM   #7
Junior Member
 
Join Date: Jan 2010
Location: Eastside Muff~Palmdale,CA
Posts: 93
Total Cats: 0
Default

Motor Oil contains fused ring molecules or PAHs which cause it to glow.
Eadohcturbo is offline   Reply With Quote
Old 01-26-2010, 03:23 AM   #8
Newb
iTrader: (1)
 
Join Date: Apr 2009
Location: San Fransisco, CA
Posts: 25
Total Cats: 0
Default

Next time I want to go to a rave, I'll change my oil before, bathe in the used T Synth, and go rub on some ladies. They'll all be begging for my oil.
Travisivart190 is offline   Reply With Quote
Old 01-26-2010, 03:25 AM   #9
Elite Member
iTrader: (1)
 
NA6C-Guy's Avatar
 
Join Date: Feb 2008
Location: Birmingham Alabama
Posts: 8,038
Total Cats: 43
Default

Skin cancer is awesome!
NA6C-Guy is offline   Reply With Quote
Old 01-26-2010, 03:27 AM   #10
Newb
iTrader: (1)
 
Join Date: Apr 2009
Location: San Fransisco, CA
Posts: 25
Total Cats: 0
Default

So are ladies begging for you to put oil all over their body. Maybe even their face. I think it's a give and take situation. With me mostly doing the taking. And giving some oil.
Travisivart190 is offline   Reply With Quote
Old 01-26-2010, 03:13 PM   #11
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

I spoke with a Scientist I work with about this. He used to be in the petrochemical business. He said it is probably the phosphorus, especially since the gear oil fluoresced more than the motor oil.

You know, I went to a strip club once where they used blacklights and multicolored UV glowing oils on the dancers. That was pretty cool. Yes they were female.
ZX-Tex is offline   Reply With Quote
Old 01-26-2010, 03:22 PM   #12
Senior Member
iTrader: (1)
 
Join Date: Jul 2009
Location: Batavia, IL
Posts: 604
Total Cats: 0
Default

Concentrated laundry detergent fluoresces as well. It was embarrassing to go lazer tagging, and then have white blotches showing up all over my seemingly clean clothing. Especially in the crotch area.
Cococarbine3 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Roll bar, supercharger, 6ul, gauges, chassis brace. tottestad Miata parts for sale/trade 17 07-31-2014 07:26 PM
99 With BEGi-S and Nexus 7 Dash mlev Build Threads 1 03-27-2014 12:17 AM
NA 1.6: glowing manifold and turbo railz DIY Turbo Discussion 23 12-02-2009 09:38 PM
it glows at 7psi 1990miata1.6 Prefabbed Turbo Kits 22 03-24-2009 12:25 AM
Glowing turbo and 3psi? Ole Prefabbed Turbo Kits 76 08-22-2007 09:30 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:30 AM.