Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - First Generation

Reply
 
Thread Tools Display Modes
Old 03-23-07, 12:23 AM   #16
rx300s415
Driver
Trader Score: (0)
 
Join Date: Jan 2007
Location: California
Posts: 118
Default

Thank you very much for the explanation, suggestions, and supplemental reading Tuned...I will try to get ahold of some GC 0W-30 this weekend...but that Costco deal for Mobil1 5W-30 seems tempting...but I think my "baby" deserves the best...since I know what's real and best for it now when it comes to oil haha...thanks again Tuned and everyone else for the info!

and I will go out for that Autozone sale...but seeing that the nearest Autozone is in the next town 15 minutes away...and is probably the only Autozone for a 25mile or 50 mile radius...I think they will be out seeing how some people have already reported seeing empty shelves for these!!

Last edited by rx300s415; 03-23-07 at 12:31 AM.
rx300s415 is offline   Reply With Quote
Old 03-23-07, 01:42 AM   #17
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

Just call ahead so you won't waste your time and gas.
Correct me if I am wrong, with current AZ sale, cost per quart is the same as the 6 pack M1 at Costco. Also if you can find the older SL rated Mobil 1 (one with rectangular instead of the ribbed bottle) from Napa Auto Parts , grab those since they are mainly PAO based. SL rated M1 is the only one I will ever buy from Mobil, if I want to buy a Group III oil, I will buy the cheaper Pennzoil Platinum.

FYI, official Japan Mobil web stated "PAO+ Hydroprocessed" for 5w-30 and 10w-30 weights. Hydroprocessed means highly re-refined oil from petroleum crude.
http://www.mobil1.jp/products_mobil1.html
TunedRX300 is offline   Reply With Quote
Old 03-25-07, 06:25 PM   #18
dfish
Driver School Candidate
Trader Score: (0)
 
Join Date: Mar 2007
Location: ca
Posts: 40
Default

I just finished an oil change and put in the GC. I like it. Runs very smooth and silky. I'm a believer in GC. We'll see how holds up after a few 1000 miles.
dfish is offline   Reply With Quote
Old 03-29-07, 07:36 PM   #19
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

Lexmex also reported silky smooth feel after he switched to GC. Fresh oil and PAO's better viscosity before engine reaches operating temperature may contribute to the smoothness.
I think Lexmex is the first to try GC on this forum, he should have the most miles on oil.
My RX has 800 miles since I changed to GC, my car feels similiar to when I used the old Mobil 1 SL rated 5w-20 and 0w-20 oil: better power and less drag due to GC's lower temperature viscosity compared to other 30 weight oil.


FYI, someone just posted a GC Virgin Oil Analysis, manufactured on 3/23/07. Looks solid, I like the high TBN and flash point for additional high temperature protection for 1mz-fe.

GC VOA
http://theoildrop.server101.com/foru...e=0#Post856707

Mobil 1 VOAs
http://theoildrop.server101.com/foru...&Number=836437
TunedRX300 is offline   Reply With Quote
Old 04-01-07, 11:25 PM   #20
Lexmex
Moderator
Trader Score: (0)
 
Lexmex's Avatar
 
Join Date: Apr 2004
Location: Miami, Florida
Posts: 13,382
Default

Quote:
Originally Posted by TunedRX300 View Post
Lexmex also reported silky smooth feel after he switched to GC. Fresh oil and PAO's better viscosity before engine reaches operating temperature may contribute to the smoothness.
I think Lexmex is the first to try GC on this forum, he should have the most miles on oil.
My RX has 800 miles since I changed to GC, my car feels similiar to when I used the old Mobil 1 SL rated 5w-20 and 0w-20 oil: better power and less drag due to GC's lower temperature viscosity compared to other 30 weight oil.


FYI, someone just posted a GC Virgin Oil Analysis, manufactured on 3/23/07. Looks solid, I like the high TBN and flash point for additional high temperature protection for 1mz-fe.

GC VOA
http://theoildrop.server101.com/foru...e=0#Post856707

Mobil 1 VOAs
http://theoildrop.server101.com/foru...&Number=836437

Stilll, very silky smooth. My RX has been sitting for a week (and no track tonight as I just got back). I have about 2,000 miles or so on it now and still no problems to report and no consumption issues. Runs like a champ.
__________________
Homepage of my 1999 RX300 AWD
Lexmex is offline   Reply With Quote
Old 04-02-07, 11:34 PM   #21
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

I just picked up 7 quarts of GC when I visited my parent since I cleaned up inventory of my local Autozone. I have a little stash for 6 oil changes or three summers, now if you think I am crazy over a good oil, take a look at what this guy did.
http://theoildrop.server101.com/foru...0&fpart=1&vc=1
TunedRX300 is offline   Reply With Quote
Old 04-03-07, 02:38 PM   #22
Lexmex
Moderator
Trader Score: (0)
 
Lexmex's Avatar
 
Join Date: Apr 2004
Location: Miami, Florida
Posts: 13,382
Default

Quote:
Originally Posted by TunedRX300 View Post
I just picked up 7 quarts of GC when I visited my parent since I cleaned up inventory of my local Autozone. I have a little stash for 6 oil changes or three summers, now if you think I am crazy over a good oil, take a look at what this guy did.
http://theoildrop.server101.com/foru...0&fpart=1&vc=1


At least BMW has it here in quantity, but extremely expensive at roughly $30 USD/liter. I told my father to hoard when he finds it.
__________________
Homepage of my 1999 RX300 AWD
Lexmex is offline   Reply With Quote
Old 04-05-07, 10:15 PM   #23
thomas1
Lexus Test Driver
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 986
Default

Well I bought 20 quarts at two stores in my area (Roseville CA) good price at $4.49 per quart. Havent tried it yet, trying to decide between the truck or the RX
thomas1 is offline   Reply With Quote
Old 04-05-07, 11:09 PM   #24
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

Quote:
Originally Posted by thomas1 View Post
Well I bought 20 quarts at two stores in my area (Roseville CA) good price at $4.49 per quart. Havent tried it yet, trying to decide between the truck or the RX
Welcome to the GC/RX300 club, IMHO, hot Sacramento summer + 1mzfe engine makes GC almost a given for RX. If ever give it a try, let us know your experience.
TunedRX300 is offline   Reply With Quote
Old 04-06-07, 12:24 AM   #25
dfish
Driver School Candidate
Trader Score: (0)
 
Join Date: Mar 2007
Location: ca
Posts: 40
Default

TunedRX300:
Do you know what have the UOAs on 1mz-fe engines been showing for GC? How many miles should we be expecting before oil change?
dfish is offline   Reply With Quote
Old 04-06-07, 08:50 AM   #26
thomas1
Lexus Test Driver
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 986
Default

thank you I will, Somehow the Ford truck doesnt deserve this oil.....
thomas1 is offline   Reply With Quote
Old 04-06-07, 02:48 PM   #27
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

dfish,
Three UOAs for us to reference, which suggest GC oil change interval range is 6-8K miles. Take these data w/ a grain of salt since 1) they are data from other people 2) none for RX300 3)you may have different environment and usage.
UOA for a 3mz-fe (1mz-fe's cousin) Sienna for 7.8K, GC gold. I think this UOA may be optimistic http://theoildrop.server101.com/foru...&Number=246706
UOA for 1mz-fe Sienna for 4.6K, GC gold
http://theoildrop.server101.com/foru...&Number=221788
UOA for 1mz-fe for 5.3K w/ fuel additives, GC green
http://theoildrop.server101.com/foru...&Number=232893

My current fill is GC gold + 2 oz of Auto-RX. As you can see, UOA from your own car is needed since each of us has slightly different setup and usage.

Tom,
I use a group III oil for my other car, I had a stash of Pennzoil Platinum, bought @$0.99 per quart from Kragens when they had the rebate deal. Your Ford truck may not need GC, a cheaper Group III oil may do fine.

Last edited by TunedRX300; 04-06-07 at 04:10 PM.
TunedRX300 is offline   Reply With Quote
Old 04-06-07, 02:59 PM   #28
thomas1
Lexus Test Driver
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 986
Default

Yea, Ford recommends a 5-20 weight, I have been using Mobil 1, and the ford filter. My lexus was on synthetic blend since its first oil change, and then I switch to full synthetic at around 100k miles.
thomas1 is offline   Reply With Quote
Old 08-01-07, 05:00 PM   #29
TunedRX300
Lexus Champion
Trader Score: (0)
 
Join Date: Jan 2005
Location: CA
Posts: 2,384
Default

Autozone recently has sold out German Castrol and some assumed the product is discontinued by Castrol. However, yesterday I was able to pick up 10 quart @ $4.49 per. They have M07 code, which indicates they are made in 2007. GC is alive and well and I will do an UOA in one month
TunedRX300 is offline   Reply With Quote
Old 08-01-07, 07:04 PM   #30
thomas1
Lexus Test Driver
Trader Score: (0)
 
thomas1's Avatar
 
Join Date: Sep 2006
Location: Sacramento, California
Posts: 986
Default

I put it in and recorded the highest fuel economy that my nine year old RX has ever consummed. 22.5 miles per gallon on a 1700 mile trip at 75 and above speed. Nice oil....
thomas1 is offline   Reply With Quote
Reply

Tags
0w20, 0w30, 1mzfe, buy, castrol, europe, francisco, gc, german, points, san, seller, sienna, syntec, synthetic

Thread Tools
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

All times are GMT -7. The time now is 04:03 PM.

Go

Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0
Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS