Engine oil testing, Is there any value to doing it. |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Engine oil testing, Is there any value to doing it. |
malcolm2 |
Dec 7 2013, 10:56 AM
Post
#1
|
Advanced Member Group: Members Posts: 2,745 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I know that ENGINE OIL on these forums can be a hot button, but I am not asking about DINO vs. SYN, or 30 vs. 50 weight, so let's here the opinions.
I am curious.... I just have a daily driver so let's talk about what I would gain. Not racing, or engine building, or trying to re-invent the wheel here. Does anyone see any value in testing engine oil? What could I learn? I just changed the break-in oil after about 500 miles. Just a guess, cause the ODO is not working. basically 2-1/2 full tanks of gas ran thru. I found a send-off testing service for $25. So it is affordable for the curious. If I do it, should I wait for this or maybe even one more oil change? Then I figured do it again in a year or so and compare. I used Brad Penn break-in and re-filled with Brad Penn 20W-50. Thanks in advance for the input, Clark |
Elliot Cannon |
Dec 7 2013, 12:44 PM
Post
#2
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
I'm not so sure I would do it for a daily driver. It depends I guess on the value of the engine. I would think that regular oil and filter changes should be enough. Having said that, I will be sending the oil in my airplane off for analysis with every oil change. But the consequences of an engine failure at altitude are just a bit more serious. (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/av-943.gif)
|
shoguneagle |
Dec 7 2013, 01:09 PM
Post
#3
|
shoguneagle Group: Members Posts: 1,180 Joined: 3-January 03 From: CA, OR, AZ (CAZOR); New Mexico Member No.: 84 Region Association: Northern California |
Being an old frustrated "Engineer" I like to know certain things which includes what the engine is burning and how it is burning. I would not take oil sampling every time but maybe initially after breakin as you have done; maybe somewhere around 3-5,000 miles and maybe something around 10,000 miles.
In aviation, we take oil sampling and testing on routine and special basis. It is usually where the engine(s) show certain characteristics, testing for byproducts, etc. I believe you can tell a lot about an engine from the oil samples. With a trend line, you can be watching and learning about your engine while you drive it. Street driving is one thing and racing is another thing; racing I would be taking oil sampling/testing after every race for information concerning the engine. Again, I am just an old frustrated engineer. Steve Hurt |
Jake Raby |
Dec 7 2013, 09:35 PM
Post
#4
|
Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
The main thing you'll learn is exactly when the oil should be changed in your particular engine.
|
r_towle |
Dec 7 2013, 10:06 PM
Post
#5
|
Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
I'm not so sure I would do it for a daily driver. It depends I guess on the value of the engine. I would think that regular oil and filter changes should be enough. Having said that, I will be sending the oil in my airplane off for analysis with every oil change. But the consequences of an engine failure at altitude are just a bit more serious. (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/av-943.gif) Says the man who is rebuilding his motor....... |
rick 918-S |
Dec 7 2013, 10:07 PM
Post
#6
|
Hey nice rack! -Celette Group: Members Posts: 20,460 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
I had one time when I found real value in testing. I lost pressure. Not completely but enough that I stopped driving the car thinking I had a serious issue. The only other time I ever saw this type of thing happen I had a spun bearing.
The test was reassuring and showed no metals but my 20/50 WT oil los viscosity. The viscosity test showed the oil was around 20 WT. The oil got so hot it cooked the viscosity enhancers out of suspension and turned it into black flecks of what resembled coal slag. It would crumble when you rubbed it between your fingers and turn into a black paste. That was the last time I ran Castrol GTX. After further research I discovered the motor cycle racers would get one race out of the oil and it was cooked. They branded it Castrol Brown because it stained the inside of your engine with a brown tint from thermal breakdown. |
r_towle |
Dec 7 2013, 10:14 PM
Post
#7
|
Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
I had one time when I found real value in testing. I lost pressure. Not completely but enough that I stopped driving the car thinking I had a serious issue. The only other time I ever saw this type of thing happen I had a spun bearing. The test was reassuring and showed no metals but my 20/50 WT oil los viscosity. The viscosity test showed the oil was around 20 WT. The oil got so hot it cooked the viscosity enhancers out of suspension and turned it into black flecks of what resembled coal slag. It would crumble when you rubbed it between your fingers and turn into a black paste. That was the last time I ran Castrol GTX. After further research I discovered the motor cycle racers would get one race out of the oil and it was cooked. They branded it Castrol Brown because it stained the inside of your engine with a brown tint from thermal breakdown. I just did all the fluids on the new ranger with 100k on the clock. It was never done. Tranny fluid...cooked Oil, cooked and smelled like fuel Diffs, both foamy and crap Transfer case smelled ok... Unreal what happens to old lube. |
Elliot Cannon |
Dec 8 2013, 01:07 AM
Post
#8
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
[quote name='r_towle' date='Dec 7 2013, 08:06 PM' post='1967665']
[quote name='Elliot Cannon' post='1967447' date='Dec 7 2013, 01:44 PM'] I'm not so sure I would do it for a daily driver. It depends I guess on the value of the engine. I would think that regular oil and filter changes should be enough. Having said that, I will be sending the oil in my airplane off for analysis with every oil change. But the consequences of an engine failure at altitude are just a bit more serious. (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/av-943.gif) [/quote] Says the man who is rebuilding his motor....... [/quote Says the man who is replacing one valve guide. (IMG:style_emoticons/default/biggrin.gif) |
walterolin |
Dec 8 2013, 08:38 AM
Post
#9
|
Senior Member Group: Members Posts: 685 Joined: 30-November 11 From: Louisville, Ky Member No.: 13,838 Region Association: South East States |
I had one time when I found real value in testing. I lost pressure. Not completely but enough that I stopped driving the car thinking I had a serious issue. The only other time I ever saw this type of thing happen I had a spun bearing. The test was reassuring and showed no metals but my 20/50 WT oil los viscosity. The viscosity test showed the oil was around 20 WT. The oil got so hot it cooked the viscosity enhancers out of suspension and turned it into black flecks of what resembled coal slag. It would crumble when you rubbed it between your fingers and turn into a black paste. That was the last time I ran Castrol GTX. After further research I discovered the motor cycle racers would get one race out of the oil and it was cooked. They branded it Castrol Brown because it stained the inside of your engine with a brown tint from thermal breakdown. I just did all the fluids on the new ranger with 100k on the clock. It was never done. Tranny fluid...cooked Oil, cooked and smelled like fuel Diffs, both foamy and crap Transfer case smelled ok... Unreal what happens to old lube. I had an '02 Ranger, 4.0, manual transmission. About 70,000 miles it got to be almost impossible to shift. Being a typical male, I finally read the manual, and discovered that Ford had gone to ATF in a stick shift instead of dino oil, and that I was supposed to change it every 50,000 or so. I didn't know about Castrol either. I don't use it. From another thread on oil filters, it seems that Castrol would pair up real well with Fram filters. |
Lo-Fi Version | Time is now: 18th May 2024 - 03:07 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |