. Got Valvoline 5w30 instead.
Royal purple
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
make sure you get the "ultra" platinum, which is hard to find locally (at least for me). i've been running regular platinum full synthetic pennzoil for years on all my cars, including the LS. No issues for me and always available at walmart for under $24/5qt jug.
to stay on subject, what is the objective evidence that royal purple "cleans"?
to stay on subject, what is the objective evidence that royal purple "cleans"?
Lexus Test Driver
Joined: Apr 2012
Posts: 6,293
Likes: 494
From: Long Island
and yes tough to find, ordered it off amazon
ah ok no problem. i'm curious since i have another car with a sludgy engine and want to see what will work to get get rid of it. i pulled the pan and it was baaad, plus the valve train was pretty coated with sludge too. put in mobile 1 full syth and haven't checked it since other than oil level on the dip stick which seems ok but not substantial enough to tell if the rest of the engine is sludge-free. i try to stay away from seamfoam stuff!
Lexus Champion
Joined: Oct 2019
Posts: 18,422
Likes: 1,805
From: Ohio
make sure you get the "ultra" platinum, which is hard to find locally (at least for me). i've been running regular platinum full synthetic pennzoil for years on all my cars, including the LS. No issues for me and always available at walmart for under $24/5qt jug.
to stay on subject, what is the objective evidence that royal purple "cleans"?
to stay on subject, what is the objective evidence that royal purple "cleans"?
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
ah ok no problem. i'm curious since i have another car with a sludgy engine and want to see what will work to get get rid of it. i pulled the pan and it was baaad, plus the valve train was pretty coated with sludge too. put in mobile 1 full syth and haven't checked it since other than oil level on the dip stick which seems ok but not substantial enough to tell if the rest of the engine is sludge-free. i try to stay away from seamfoam stuff!
Racer
Joined: Sep 2008
Posts: 1,286
Likes: 212
From: Chandler, AZ
Lexus Champion
Joined: Oct 2019
Posts: 18,422
Likes: 1,805
From: Ohio
https://imgur.com/a/lTLyBCz
When I first bought the car on whatever oil it had in it, I'll scope the car again so I can show the improvement but when I did the other cover (was not leaking at the time of the first) after about 700 miles on RP it was far cleaner
When I first bought the car on whatever oil it had in it, I'll scope the car again so I can show the improvement but when I did the other cover (was not leaking at the time of the first) after about 700 miles on RP it was far cleaner
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Racer
Joined: Jan 2018
Posts: 1,611
Likes: 197
From: SoCal mtns.
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
Lexus Champion
Joined: Sep 2010
Posts: 2,218
Likes: 300
From: NA
https://imgur.com/a/lTLyBCz
When I first bought the car on whatever oil it had in it, I'll scope the car again so I can show the improvement but when I did the other cover (was not leaking at the time of the first) after about 700 miles on RP it was far cleaner
When I first bought the car on whatever oil it had in it, I'll scope the car again so I can show the improvement but when I did the other cover (was not leaking at the time of the first) after about 700 miles on RP it was far cleaner
Lexus Champion
Joined: Sep 2010
Posts: 2,218
Likes: 300
From: NA
For this car Royal Purple oil is worth what it makes you subjectively feel. The warm and fuzzies could make the oil really worth the money you spend on it.
Otherwise any modern synthetic including the bargain ones that have the API starburst certification label will be far, far better than what the engineers designed the motor to handle.
Otherwise any modern synthetic including the bargain ones that have the API starburst certification label will be far, far better than what the engineers designed the motor to handle.
Thread
Thread Starter
Forum
Replies
Last Post
cmc07e
GS - 2nd Gen (1998-2005)
1
Jul 6, 2007 05:28 AM