Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - Third Generation
Sign in using an external account
Register Forgot Password?

Oil change.. did I mess up with wrong weight.

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 04-12-11, 03:33 PM   #1
cdestuck
Driver School Candidate
Trader Score: (0)
 
Join Date: May 2010
Location: Pa
Posts: 7
Default Oil change.. did I mess up with wrong weight.

Did my first oil change on my 2010 Rx 350. First several were done at the dealer. Thought I had read the proper weight was 5w/30. So picked up a couple of filers at the Toyota dealer and did the change with no problem. Filled the engine with the 6.8 quarts of 5w/30 and then when putting the oil cap on is when I noticed it said 0w/20. DUH! So ya all think I'm ok with this until the next oil change or should I drain this out and get the 0w/20 . Thanks.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
cdestuck is offline   Reply With Quote
Old 04-12-11, 03:44 PM   #2
yahj
Driver
Trader Score: (0)
 
Join Date: Oct 2010
Location: wa
Posts: 157
echo
Default

I think its better to drain it and change with the right grade. Better safe than sorry.
yahj is offline   Reply With Quote
Old 04-12-11, 04:50 PM   #3
sonagi1972
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2009
Location: ca
Posts: 6
Default

No problem with differnet weight of oil. It all depends on the area where you live. If you live in the colder area it's better to use heavier oil vs. worm area. Any mechanic will tell you that there shouldn't be any problem. One question, why didn't you use synthetic oil like Mobil 1? I believe dealer uses synthetic for all 2010 rx. Lexus or not, it's just a car like any other car.
sonagi1972 is offline   Reply With Quote
Old 04-12-11, 05:09 PM   #4
Barrington
Rookie
Trader Score: (0)
 
Join Date: Mar 2011
Location: Ca
Posts: 57
Default

Heavier oil in colder area?? I thought it was the opposite
Barrington is offline   Reply With Quote
Old 04-12-11, 05:29 PM   #5
sweetboy02
Lead Lap
Trader Score: (0)
 
sweetboy02's Avatar
 
Join Date: Mar 2011
Location: MA
Posts: 430
Default

Quote:
Originally Posted by cdestuck View Post
Did my first oil change on my 2010 Rx 350. First several were done at the dealer. Thought I had read the proper weight was 5w/30. So picked up a couple of filers at the Toyota dealer and did the change with no problem. Filled the engine with the 6.8 quarts of 5w/30 and then when putting the oil cap on is when I noticed it said 0w/20. DUH! So ya all think I'm ok with this until the next oil change or should I drain this out and get the 0w/20 . Thanks.
To be safe, I'll replace 0w20.
sweetboy02 is offline   Reply With Quote
Old 04-12-11, 05:32 PM   #6
cdestuck
Driver School Candidate
Trader Score: (0)
 
Join Date: May 2010
Location: Pa
Posts: 7
Default

Good question on the Mobile 1 as I'm switching to that from Amsoil on the Harley next change. Had a case of this regular 5w/30 here at the house. Next will be Mobile 1 as long as I can find the right weight.
cdestuck is offline   Reply With Quote
Old 04-12-11, 07:19 PM   #7
JimH2
Pole Position
Trader Score: (0)
 
Join Date: Nov 2010
Location: OR
Posts: 387
Default

Quote:
Originally Posted by cdestuck View Post
Did my first oil change on my 2010 Rx 350. First several were done at the dealer. Thought I had read the proper weight was 5w/30. So picked up a couple of filers at the Toyota dealer and did the change with no problem. Filled the engine with the 6.8 quarts of 5w/30 and then when putting the oil cap on is when I noticed it said 0w/20. DUH! So ya all think I'm ok with this until the next oil change or should I drain this out and get the 0w/20 . Thanks.
Read pages 6-9 in the following .pdf file, and you should find the answer.
The 0W vs 5W makes no practical difference in most climates, but the 20 vs 30 wt. viscosity may make a difference based on engine manufacturing (tolerances) per the article.
Attached Images
File Type: pdf TechBrief13 - Oil Viscosity.pdf (583.6 KB, 106 views)
__________________
2010 RX 450h AWD
Smoky Granite Mica/Black
JimH2 is offline   Reply With Quote
Old 04-12-11, 07:29 PM   #8
MEP7557
Lexus Test Driver
Trader Score: (0)
 
MEP7557's Avatar
 
Join Date: Dec 2009
Location: AZ
Posts: 1,113
Default

I think I would change it. Few dollars now, few thousand dollars later. You never know.
__________________
2010 RX350 AWD LUXURY PKG
MEP7557 is offline   Reply With Quote
Old 04-13-11, 05:53 AM   #9
sightdev
Pole Position
Trader Score: (0)
 
sightdev's Avatar
 
Join Date: Feb 2005
Location: VA
Posts: 357
Default

Quote:
Originally Posted by cdestuck View Post
Did my first oil change on my 2010 Rx 350. First several were done at the dealer. Thought I had read the proper weight was 5w/30. So picked up a couple of filers at the Toyota dealer and did the change with no problem. Filled the engine with the 6.8 quarts of 5w/30 and then when putting the oil cap on is when I noticed it said 0w/20. DUH! So ya all think I'm ok with this until the next oil change or should I drain this out and get the 0w/20 . Thanks.
warming season is here in NE, you should be ok. you will loose the efficiency of lower visc oil so your MPG may go down very slightly. 0w20 is full synthetic hence 10k interval. if you used regular 5w-30, you should change it out to 0w20 after 3-5k but everything should be ok.
sightdev is offline   Reply With Quote
Old 04-13-11, 08:49 PM   #10
MrBooby
Lexus Champion
Trader Score: (1)
 
MrBooby's Avatar
 
Join Date: Feb 2009
Location: NJ
Posts: 2,751
Default

I honestly wouldn't worry about it, unless you are a perfectionist. They used 5W30 on the previous generation (with the same engine), but switched to 0W20 for this generation. Apparently, they decreased the clearances in the engine on the newer models, but I have doubts about that. The 0W20 supposedly increases your MPG by .5, and it flows much easier and faster than the heavier 5W30.
MrBooby is offline   Reply With Quote
Old 04-13-11, 09:14 PM   #11
tenspeed
Lead Lap
Trader Score: (1)
 
tenspeed's Avatar
 
Join Date: Aug 2010
Location: Honeoye, NY
Posts: 426
Default

Leave it alone. It won't hurt anything and no one will know unless you tell them.
__________________
BobISF- F for fun, fast and fenomenal.
tenspeed is offline   Reply With Quote
Old 04-14-11, 05:02 AM   #12
Cruiter
Moderator
Trader Score: (0)
 
Cruiter's Avatar
 
Join Date: May 2009
Location: GA
Posts: 2,598
Default

Quote:
Originally Posted by JimH2 View Post
Read pages 6-9 in the following .pdf file, and you should find the answer.
The 0W vs 5W makes no practical difference in most climates, but the 20 vs 30 wt. viscosity may make a difference based on engine manufacturing (tolerances) per the article.
That article has nothing to do with what the engineers who designed the new low friction engines for us recommend. If you want to go with that then go ahead. But you'll get less efficiency and when an engine problem develops (it will in time), it won't be warranted.
__________________
Jim Myers

2010RX 450h is my Daily Driver
2014 Stingray keeps my heart rate up Jim's RX450h photos http://www.clublexus.com/forums/memb...er-albums.html
Cruiter is offline   Reply With Quote
Old 04-14-11, 07:01 AM   #13
JimH2
Pole Position
Trader Score: (0)
 
Join Date: Nov 2010
Location: OR
Posts: 387
Default

Quote:
Originally Posted by Cruiter View Post
That article has nothing to do with what the engineers who designed the new low friction engines for us recommend. If you want to go with that then go ahead. But you'll get less efficiency and when an engine problem develops (it will in time), it won't be warranted.
I thought the article was a good primer for explaining oil viscosity and differences associated with their operational use. The 2nd paragraph on page 9 suggests (or implies) using the recommendations set forth by the manufacturer that was developed (with associated testing) for the OEM engine in the vehicle. In this case, that would be 0W-20. I have not read any articles suggesting that the manufacturers recommendations not be adhered to, and do not believe this article suggest doing so either.

I have opted to use 5W-20 in the future for my vehicle based on having another vehicle that uses 5w-20, and my belief that 0W vs 5W will not cause any difference in the life of the engine (for the climate I live in).
__________________
2010 RX 450h AWD
Smoky Granite Mica/Black
JimH2 is offline   Reply With Quote
Old 04-14-11, 09:17 PM   #14
MrBooby
Lexus Champion
Trader Score: (1)
 
MrBooby's Avatar
 
Join Date: Feb 2009
Location: NJ
Posts: 2,751
Default

Just changed the oil on our RX350. Just as an FYI, the 0W20 is NOTICEABLY more free-flowing than the 5W30. In fact it feels like vegetable oil (almost like water), I was really surprised. I might be a little over exaggerating with the water-like properties, but believe me, it's way different from 5W30 which I used in the past(for the 2nd gen). Also, the filter had a bunch of metal particles, you could see them reflecting in the light. I don't know if I should be happy about this, since I've never noticed that before on our other cars.

Also, there was some oil around the filter casing and the oil pan. I still haven't figured out where it came from, possibly from the filter casing sensor(oil pressure?). I wiped everything up, so that I could see if it reappears. My guess is that somebody didn't tighten the filter enough. I'll check again at the next oil change, since the oil leak wasn't significant.

Last edited by MrBooby; 04-14-11 at 09:21 PM..
MrBooby is offline   Reply With Quote
Old 06-23-14, 10:03 PM   #15
RX350alan
Driver School Candidate
Trader Score: (0)
 
RX350alan's Avatar
 
Join Date: Jun 2014
Location: ny
Posts: 5
Default

Quote:
Originally Posted by MrBooby View Post
Just changed the oil on our RX350. Just as an FYI, the 0W20 is NOTICEABLY more free-flowing than the 5W30. In fact it feels like vegetable oil (almost like water), I was really surprised. I might be a little over exaggerating with the water-like properties, but believe me, it's way different from 5W30 which I used in the past(for the 2nd gen). Also, the filter had a bunch of metal particles, you could see them reflecting in the light. I don't know if I should be happy about this, since I've never noticed that before on our other cars.

Also, there was some oil around the filter casing and the oil pan. I still haven't figured out where it came from, possibly from the filter casing sensor(oil pressure?). I wiped everything up, so that I could see if it reappears. My guess is that somebody didn't tighten the filter enough. I'll check again at the next oil change, since the oil leak wasn't significant.
oil may be from ur "O" ring.. They are supposed to lubricate that O ring and if they did it it will drop some oil after they squeeze it (tightened). its normal!
RX350alan is offline   Reply With Quote
Old 06-23-14, 10:03 PM
 
 
 
 
Reply

Tags
04, 2010rx350, 250, 450h, change, filter, fyi, lexus, oil, quarts, rx, rx330, rx450h, weight, wrong

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
New RX 300 Engine Using Oil stoutman RX - First Generation 13 09-12-14 06:14 PM
How to check oil type 0W-20 or 5W-30? Dealer might give me wrong oil change sweetboy02 RX - Third Generation 22 06-23-14 09:35 PM
2006 LS430 oil/filter change XJSFan LS430 19 02-17-14 05:00 PM
How much did you pay for an oil change lexgolf LS460, LS460L and LS600h 49 01-06-14 03:35 PM
A lesson on oil jagtoes ES350 (2007 - 2012) 7 12-17-08 08:41 AM

All times are GMT -7. The time now is 12:22 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info