redzeppelin

Hey, I was wondering I should switch to synthetic oil. My 97 es300 is a little over 68,000 miles. I've heard that syn oil can be bad or good, also i tried searching the topic but didn't come to any conclusions. So are there any pros or cons that anyone can inform me of. Also what would be any symptoms of sludge building up in my engine. Thanks in advance.

Tammy

Only true way to check for sludge is to remove a valve cover and look. Question is, are you prepared to have the engine torn down to repair it $$$$ or best left unknown. Kinda like ...Life.

steviej

iTrader: (1)

dude, a search on "synthetic" will hit up with hundreds of threads posing the pros and cons that you ask for. Your question, like many times in the past, opens a pandora's box or arguements, heated debates and reposts of known opinions and facts.

The best conclusion is "do what makes you feel most comforable with your car"

A second search on "sludge" will give you information about symptoms. There are even threads with pictures.

Moderators, please close this thread before we go through the age old oil debate again.

steviej

sonyman

www.bobistheoilguy.com

/thread

Scott

1993ES300x

o.k.. i have read enought threads in here to come up wtih something..
when i first did the switch on my car. it runs a little smoother. engine is a little calm. just a little difference.
the thing .. the price difference between them is huge.. if you're one of those guys who love to do things with your own hands and work on your car.. i'll stay with the regular oil.. changing it every 3K or even less gives me a peace of mind. =)

HarrierAWD

There are at least 10,000 posts here regarding dino vs. synthetic oil. Yes, close this thread please.

koolaidman

ya syn is better adds hp. ya ya ya jk. i (as a lexus tech) dont care much for syn. as some ppl will say o syn is better. if u give me a pretty good reason y. then i might. imo. just use conventional oil

MGS4

lack of oil change may end up like this car (link)

http://forum.e46fanatics.com/showthr...=1#post2894261

ILOVEGIRLS

iTrader: (3)

you also make a bit more horse power.

http://www.importreview.com/reviews/...0-130valv.html

Lexmex

Rather than going through a debate of dino vs. synth, the better topic of discussions are what grade of oil, what type of oil filter, when to change the oil. Synthetic is a no-brainer in itself.

jacques

Stick with normal oil, running synthetic is pointless unless you race/boost.

blacksc400

iTrader: (4)

I get synthetic oil for all my lexus. 10w40 for higher miles and 10W30 for my GS and LX and IS since they all under 55K miles. I don't race my GS too, so 10W30 will give me enough protection.
I even went 10W60 for my SC4 in summer time before, 120+ degree here.

Lexusfreak

I agree with Steve! We don't need anymore synthetic vs. dino oil threads.....it's been beaten to death!

sexilexi

I heard an ad that Castrol GTX protects against sludge. How does it do this?

mmahamm

The same way all other oils do. By changing your oil, you are protecting against sludge.

It was an ad. They are telling you this because they want you to believe that Castrol GTX is better in this respect, but it isn't necessarily any better than Mobil or Exxon or Havoline or Pennzoil........