Topic: Regular oil - change to synthetic?

[MoAv]

Just a question - if you have been using regular oil (80,000 miles + ) is it OK to switch to synthetic?  I understand that the synthetic oil is much better for your engine, but I've heard somewhere that if you've been running regular motor oil that you can't change over.  That it is something that has to be done when the vehicle is new. 

What do you all think?

[MyBigToy]

Go ahead and do it, Peggy. There used to be issues with older gaskets leaking with synthetic if dino had previously been used but it's a thing of the past. I suspect you plan to keep your truck for a while and with the way you roll the miles on the synthetic will help assure the engine will last a long, long time - 300k shouldn't be an issue. So you should be good for what, another two years? 

[justJR]

That was true in the past but the technology involving synthetics has improved to a degree where it will do nothing but help you higher milage engine.
You might also look into a BG product called MOA as your miles increase. It will keep the seals conditioned and help rid the engine of the buildup that comes from the conventional oil you have been running.

[bluedevil]

do it.

[oHIobellboy]

Another note on this topic. Which oil filter to use. It seems like I've read about 7500 miles on the Synthectics is the norm but which oil filter will last that long?

[bluedevil]

I  Used to use k&n gold but now I use Fram.

[justJR]

I use the NAPA Gold series. Part # 1042 for the 5.3L.

[MyBigToy]

I use the NAPA Gold series. Part # 1042 for the 5.3L.

From the testing I've read the Napa Gold is one of the better filters. The Purolator Pure One and Wix filters are also very good. The AC Delco filters also tested out well. The K&N's and Mobil One's are also good but pricey.

If you are going 7500 miles between changes and not changing the filter, you want to make sure you are using one of the good filters. Most of the filters are good to 5000 miles without an issue; after that, you should consider changing the filter out.

[MoAv]

Thanks guys.  Looks like Napa Gold & Synthetic for my baby!!  Now which synthetic?  I used Mobil 1 in my Lincoln.  That be OK?  I've also heard about a Royal Purple (I think?) but have no clue where to find that. 

Recommendations anyone??

[MyBigToy]

I typically use Mobil 1; it's a good oil and it's available everywhere. You can even get 5 qt jugs at Walmart and it's cheaper that way.

I've read some bad notations about Royal Purple oil; I think it was the shear breakdown compared to other synthetics. Their gear oil is some of the best.