Royal purple
Advanced
Joined: May 2018
Posts: 652
Likes: 67
From: TX
I am using Mobil 1 FS 5W-30 at 245k in a 98 LS400. I would say be more frequent in replacing the oil and filter than leaving the oil longer. 3k if its city driving, 5k if its mixed, 6-7k if its interstate (all roadtrips).
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
My intervals are the same. With this Rona going on trips outside the city have become less frequent. Been using my ls for work just to put miles on it.
Driver
Joined: Aug 2016
Posts: 112
Likes: 20
From: Kansas
Really any synthetic oil is great. Royal is a great oil, but it is expensive. I use mostly Penzoil platinum. Usually do a very similar change interval. With a motor craft filter, which is very good filter and the Penzoil Platinum I can do an oil change for about $25-28 bucks depending on if it is on sale or not. So for that price its super easy and cheap. Takes about 20 min.
Lexus Champion
Joined: Oct 2019
Posts: 18,422
Likes: 1,805
From: Ohio
Royal killed my VVT actuators lol, cleaned too well too fast and plugged them. Still using it since I'm not as clean as I would like inside yet but I'll transition back to mobile 1 EP once it is
Lexus Test Driver
Joined: Apr 2012
Posts: 6,293
Likes: 494
From: Long Island
i just switched to pennzoil platinum after seeing the results on Project Farm, it performed better than any other oil apart from Amsoil Signature with regards to lubricity properties, temperature resistance, and low temperature viscosity... amsoil is $15 a quart though whereas pennzoil platinum is just over $20 for a 5 quart jug
the platinum is refined from natural gas instead of crude oil so it's genuinely not just another oil
the platinum is refined from natural gas instead of crude oil so it's genuinely not just another oil
Trending Topics
Racer
Joined: Sep 2008
Posts: 1,286
Likes: 212
From: Chandler, AZ
I found this new Havoline full synthetic oil in a cardboard box at Walmart that's made by Chevron for $18, but the cool part is you get 6 quarts instead of 5, so you won't have to buy an additional quart to do a full fill of the crankcase with the normal 5.5-6qts it requires. The box is 70% recycled cardboard and oil flows faster out of the box without glugging and splashing back at you on the funnel.
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
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
I found this new Havoline full synthetic oil in a cardboard box at Walmart that's made by Chevron for $18, but the cool part is you get 6 quarts instead of 5, so you won't have to buy an additional quart to do a full fill of the crankcase with the normal 5.5-6qts it requires. The box is 70% recycled cardboard and oil flows faster out of the box without glugging and splashing back at you on the funnel.
. Got Valvoline 5w30 instead.
Advanced
Joined: May 2018
Posts: 652
Likes: 67
From: TX
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
i just switched to pennzoil platinum after seeing the results on Project Farm, it performed better than any other oil apart from Amsoil Signature with regards to lubricity properties, temperature resistance, and low temperature viscosity... amsoil is $15 a quart though whereas pennzoil platinum is just over $20 for a 5 quart jug
the platinum is refined from natural gas instead of crude oil so it's genuinely not just another oil
the platinum is refined from natural gas instead of crude oil so it's genuinely not just another oil
to stay on subject, what is the objective evidence that royal purple "cleans"?