ATLs460

Just use the synthetic...you'll be fine

BearsLexus

In all my years of working on stuff from cars to motorcycles to tractors and lawn equipment, I was always taught to NEVER mix conventional (dinosaur) oil with synthetic, because they won't mix... I HAVE used a semi-synthetic with a conventional, in a pinch, but I would say, if you have conventional in there and need to add some oil, add conventional. If you want to switch, do it at the proper full oil change time.
I could have been taught improperly, but why take the risk, is my thought!

Bear

ATLs460

Not to be harsh but...you were taught improperly.

Synthetic oil isn't like some other animal here. It's still oil. Usually with a much better additive package and refined further than standard conventional oils.

I work for one of the biggest motor oil companies in the world, so I hear these old oil myths all the time. Some of which had held truth 20 years ago but oil has come a LONG way in 20 years.

salimshah

As a mod, I cringe when I see a thread on 'which oil is best' which 'fuel grade is best' etc. I think this thread is about to turn ugly. Please prove me wrong. I would urge all to show maturity and class and not let this thread end up as locked.

As you compose a reply, please, please review it before you hit the 'submit' button. Your post/reply will be well received if it has good reasoning behind it. Mature conversation will be (and is) appreciated by members/readers.


Salim

HadYurPhil

The consensus among several people I've talked to is that mixing them is fine. Thanks for all the input!

BearsLexus

Well, then I stand corrected! Thanks Eric, good to know! What with the RX300 having the potential to be a slow leaker, and mine certainly falls into that category, it's good to know that in a pinch I can throw in some conventional to get me through and not worry about mixing issues!

And Salim, I hope you weren't concerned that I was going to get ugly about things! I have plenty of that physically without it extending to my brain and mouth!

Hope everyone has a great Monday... I'm wearing black, in mourning for the loss of this past weekend.

Bear

ATLs460

I was in no way being confrontational. After reading my response I can see how it could be not well received. My apologies!

Glad you found a cost effective way to get by in a pinch!

salimshah

Thank You.

This is a wonderful board.

When I was approached to be a Mod it took me a while to say Yes.

It is folks like you that I have not regretted saying yes.


Salim

ATLs460

I'll second that. It's been a nice experience here on the first gen RX board. The maturity of our members really shows. Which is basically what makes or breaks a board. Happy to be a part.

Khalidch

Hi i am using conventional oil in my rx 300 2000 model.she is cosuming 1 quart every 750 miles.Question should i convert to synthatic oil like mobil 1 or castrol . or any advice is highly appericiated.There is no leak though i found beneath the block is messy .

Khalidch

I have 184000 miles on my rx and other then thatshe is running fine.

salimshah

Messy .. means a leak... not a gusher but a trickle for sure. If you have used dino oil till now, I would say stick with it. Switching to synthetic may make the leak worse.

Salim

Larry62

Look up the links here for Auto RX. It is a great product and can rejuvenate seals as well as clean your engine.Many users here have used it and have gotten good results.

Good Luck.
Larry

Khalidch

So what should be done like putting some leakguard .or I check the leak then go further.

Khalidch

How about using autorx??