if you want such extended recommedations you also typically need higher oil capacity, regular 5-7,500-mile quality filter change intervals, and hopefully a block warmer/extended highway miles.
nothing extends oil intervals like simply carrying more oil... which if you notice, is why medium+ duty engines, and extended drain kits use gigantic filters in the first place, some of them haivng a two-three quart capacity of their own.
id go alittle longer on the filters, and change filter brands. fram sucks, horribly. every personal experiance, every mechanical experiance, and every test of everything they've ever made all says the same thing... fram sucks.
nissan went so far as to void all warranties with fram maintenance items, citing them as inferior products.
race shops... is alittle off-subject even when talking about oils.
AFA royal purple. its too expencive for any justification in a non race only engine, halfway to poorly avalible, and generally not that good in street oil blends. that's just how it's always been with royal purple... when guy's drag only GNx is topping out a dyno at 1500-1600whp and he's running 0-5 race royal purple, well by god it must be good in a street engine running 10w-40.
racing doesn't apply that well with street oils, less you want to talk about long-term lubricating a CHRA. which doesn't apply to Lexus anyways. lol no turbo
now if you want a 0 weight racing oil in tight tolerance racing engine. then yes royal purple has been a good choice for longer than i know...
if you have a warranty and you're worried about it, run what the warranty says.
Incorrect since #1, it is "recommended oil change intervals". That is not in stone since I know what recommended means. Just like Lexus recommendes you used Lexus parts, lexus air in tires and you take your car in every 3,000 miles for like $200. It is a money maker period. They recommend everything and anything too.
#2 per you beloved Lexus, I need to perfom at least 1 oil change per year. Per my sludge letter. That superceeds the manual.
There is no real proof of perfoming an oil change unless you video take it. You can show slips etc till you are blue in the fact but prove that that oil was installed in that car, that filter etc. Do many ways around it.
#1 pretty much... your car's maintenance IMHO is based upon what happens with very, very low quality items primarily found in southeast asia (especially oil... Toyota's own oil policy has been shifting around their needs for quite some time)
#2 for review to those that dont know. Toyota's official "proof of a reasonable attempt of maintenance" was a single oil change reciept in the last 1 year, or 10,000 miles of operation.
LoL that's because 3s-gte's leak it out so fast it's a short change interval! hahahahahahaha (sorry that's a common 3s-gte joke, they're very leaky... worse than the notriously leaky rear bank's of the v6's by a mile)
A UAO will tell you what state the oil is in. Guessing at your own interval is nothing more than a guess. using the arguement of "this has always worked" is fine, but it has no bearing on discussing "how long is the oil good for", or "what kind of oil gives the least wear on the engine".
2, see reply i made above. don't talk alot of think when you want alot of fact.
3, i agree, BITOG is where everyone should be when they want to find a pleathera of data in the forum, but over the last few years it has become heavily biased in favor of who fronts the server bills. So... use BITOG with a grain of salt, and stick to a gathering place, or a storehouse of testing data.
5, personal opinion. the differance in his and several others in this thread is that atleast MK is basing a prefferance on a reason. he doesn't like the contents of mobil oil, fine.
Hey! mrburnickass. That's how we say, getting "OWNED"!!! LFMAO!
Well said, JimsGX, BRAVO!
P.S. it has nothing to do with understanding an analysis, but everything to do with good ol fashion common sense and logic.
owned by what??? what does *BLEEP*ing in a marble lined bathroom, charging a 6x markup on generic Toyota products with toyota labling, and product numbers. and using mexican bulk dino mobil1 5w-30, 5w-20, and 0w-20 have anything to do with a discussion on the factual basis of synthetic VS dino?