Oil Change
 

Hi

I've read several posts on the type of oil that should be used but must confess am still a bit unsure.

I have a 7M GE 3.0i Auto that has done 123000 miles.

At the moment I am using a part synthetic 10W40 oil. I'm about to do an oil change and am wondering if this is ok or would you recommend something else?

Basically, what do you have in yours?

I use havoline 10w 30 with deposit sheild, 10w 30 is the type of oil or thickness i think the factory put in them, but i would use a full synthetic 10w 30 unless your burning it or leaking it, castrol should be good, Im still a havoline fan my self but my brother swears he can tell a power difference with the 10w 30 castrol synthetic.

It has been reported by several sources that switching to a synthetic oil after having used dyno oil for 100k miles is not a wise thing to do.

Primarily due to the syn oil cleaning away the varnish and deposits that build up around the seals, thus causing leaks to develop.

A name brand 10w-30 or 10w-40 would be fine.

PS: Your brother is overly sensitive.

I run castrol 10w 40.

The car likes the 10w 40 over the 30.
So that's what I feed it.

Hybrid oils half this and half the otherr are ass in my opinion.
If you want to run synthetic. You should buy a NEW car and start it on that immediately.

Because, yes it will either leak or smoke. You don't change horses midstream.
And that's really what you are doing with 123kish on the engine.

Stick with conventional and don't mix oils either.

is the toyota genuine 10w-30 oil any good? thats what ive been using

I have seen that oil.

I have never used it so I can't critique it.
I have always been seved well by Castrol and are hesitant to change.

Unless I get something new.
If I was going to run synthetic it would be Mobile 1 full synth.

10w30 and 10w40 for the sup and 30 in everything else unless specified.

Changed the oil. Used 10W40 because that's all they had and it was 20% off...


Now that all that thick black stuff is out and replaced with lovely new amber coloured stuff I'm hoping that the engine won't get so hot.

So far so good.