Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-16-2011, 01:41 AM   #1 (permalink)
EcoModding Lurker
 
Rusty Marina's Avatar
 
Join Date: May 2011
Location: Illinois
Posts: 68
Thanks: 5
Thanked 0 Times in 0 Posts
Oil Changes: your .02 ?

They now say 3000 mile oil changes are no longer needed with the newer oils and now we can go 5000 miles.

Anyone doing this and has anyone noticed better economy by switching to Synthetic oil ?

Maybe it's my old thinking but I still keep at 3000 miles despite the fact my service van is mostly highway miles.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-16-2011, 02:23 AM   #2 (permalink)
Banned
 
Join Date: Feb 2008
Location: california
Posts: 1,329
Thanks: 24
Thanked 160 Times in 106 Posts
Synthetic oil, once a year, don't pay attention to the miles, top it off as needed.
  Reply With Quote
Old 06-16-2011, 02:27 AM   #3 (permalink)
Pishtaco
 
SentraSE-R's Avatar
 
Join Date: Jun 2009
Location: Bay Area, California
Posts: 1,485

Mean Green Toaster Machine - '06 Scion xB
Team Toyota
90 day: 48.92 mpg (US)
Thanks: 56
Thanked 284 Times in 181 Posts
Ditto to tjts' post re: annual synthetic changes, and I don't stress out if 15 months go by and I still haven't changed the oil.
__________________
Darrell

Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg

Last edited by SentraSE-R; 06-16-2011 at 04:55 PM..
  Reply With Quote
Old 06-16-2011, 02:31 AM   #4 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,594

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,533
Thanked 3,376 Times in 2,126 Posts
Quote:
Originally Posted by Rusty Marina View Post
They now say 3000 mile oil changes are no longer needed with the newer oils and now we can go 5000 miles.

Anyone doing this and has anyone noticed better economy by switching to Synthetic oil ?

Maybe it's my old thinking but I still keep at 3000 miles despite the fact my service van is mostly highway miles.
None of this is new; it's been this way for decades but it appears nobody got the memo. Well, it does take a lot of work to crack open that Owner's Manual so we can hardly expect motorists to do all that. And there you are, you have the information and STILL you cling to the old spec for no other reason than... what? Habit? That's what Grandpa did?
__________________


  Reply With Quote
Old 06-16-2011, 03:16 AM   #5 (permalink)
5 Gears of Fury
 
War_Wagon's Avatar
 
Join Date: Sep 2009
Location: Vancouver B.C., Canada
Posts: 1,230

Spunky - '90 Honda Civic CX
90 day: 35.56 mpg (US)
Thanks: 175
Thanked 175 Times in 137 Posts
I would be more concerned about your filter than your oil. Synthetics are great, but a crappy filter can still cause problems. I have actually run synthetic and just changed the filter instead of the oil, and topped up as needed. But on dino oil I still try to change it at 3000 miles for what it's worth. Probably not needed, but it is cheap insurance.
__________________
"Don't look for one place to lose 100 pounds, look for 1600 places to lose an ounce." - Tony DeFeo
  Reply With Quote
Old 06-16-2011, 03:22 AM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,594

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,533
Thanked 3,376 Times in 2,126 Posts
That makes no sense at all.
__________________


  Reply With Quote
Old 06-16-2011, 03:29 AM   #7 (permalink)
5 Gears of Fury
 
War_Wagon's Avatar
 
Join Date: Sep 2009
Location: Vancouver B.C., Canada
Posts: 1,230

Spunky - '90 Honda Civic CX
90 day: 35.56 mpg (US)
Thanks: 175
Thanked 175 Times in 137 Posts
I agree the 3000 mile thing makes no sense, but it is a hard habit to break. That's why I try to run synthetic, it gets around the old habits. I guess a lot of ecomodding is trying to change old habits, I still fumble once in a while.
__________________
"Don't look for one place to lose 100 pounds, look for 1600 places to lose an ounce." - Tony DeFeo
  Reply With Quote
Old 06-16-2011, 04:01 AM   #8 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,594

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,533
Thanked 3,376 Times in 2,126 Posts
I mean changing the filter. Unless you drive around with no oil cap on, what do you think is contaminating the oil to the degree that filter capacity is used up?

I have a Chrysler Owner's Manual that actually recommends changing the filter every OTHER oil change... and why not? I've never in almost 40 years of changing oil come across a filter that was anywhere near plugged up or compromised from sediment or sludge or whatever. And on all except the most abused equipment, there isn't much for sediments in the drain pan either.

What is a crappy filter anyway? Heck, I have quite a few engines that have no filter at all. The new '55 Chevy small-block V8 even came with no filter. Not saying having no filter is a good thing; just saying it isn't as critical as recreational oil changers make it out to be.
__________________


  Reply With Quote
The Following User Says Thank You to Frank Lee For This Useful Post:
Christ (06-19-2011)
Old 06-16-2011, 07:32 AM   #9 (permalink)
Eco-ventor
 
jakobnev's Avatar
 
Join Date: Oct 2010
Location: sweden
Posts: 1,213

Princess - '92 Mazda MX-3 GS
House of Tudor
Team Mazda
90 day: 53.54 mpg (US)
Thanks: 49
Thanked 415 Times in 262 Posts
Send a message via MSN to jakobnev
Frequent oil changes, SUV's, circumcisions, diamonds, toilet water coloring, bottled water, all rubbish that people buy due to clever marketing. (I'm sure the list can be made very long)
__________________




2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
  Reply With Quote
Old 06-16-2011, 08:20 AM   #10 (permalink)
Master EcoModder
 
basjoos's Avatar
 
Join Date: Dec 2007
Location: Upstate SC
Posts: 1,048

Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)
Thanks: 6
Thanked 547 Times in 266 Posts
The thing that normally wears out in motor oils is the residual alkalinity. Motor oil starts out with a pH of 9 to 10 and then it gradually drops in pH as acidic combustion byproducts gradually accumulate in the oil. Eventually these acidic byproducts use up all of the pH buffering agants in the oil and and the oil pH drops. When the pH gets below 6, the oil needs to be changed since its acidity then starts corroding the inside of the engine. So you can check the oil's pH and change it when it goes below 6.


Last edited by basjoos; 06-16-2011 at 09:44 AM..
  Reply With Quote
The Following User Says Thank You to basjoos For This Useful Post:
bryn (07-31-2011)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com