what oil?

[sspstang]

They make a full syn also.


Sent from my iPhone

I have seen that, I wonder how good it is? I have only ran the synblend, but I am more then sold on this oil.

[Downs]

One other thing to point out. Motorcraft oil is a synblend.

They make a full syn also.


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[sspstang]

One other thing to point out. Motorcraft oil is a synblend.

[The King]

True, I changed over to using synthetic relatively early in my vehicles lives.

[Z06killinsbf]

Beware, changing to full synthetic can possibly lead to leaks/drips do to the way the gaskets have established a set with the conventional oil. Older motors are more prone to this. Just stick with what you're using.

[The King]

Yes i would run the 5-30 in the higher mileage engines. Also run a motorcraft filter. I run motorcraft oil and filter in all my vehicles. Always comes out clean.

Agreed, I always use Motorcraft filters.

[TENGRAM]

I agree with this post.

x2... as long as you stick close to the recommended oil weight.


OP, with only 111k miles I would stay with the 5w20 if that is what is recommended by the manufacturer for yours. Synthetic will allow you to go to longer change intervals and does have the benefit of lower viscosity at startup, but as for increasing longevity... everybody I know wrecks their shit, trades or sells it, or swaps engines long before that would make a difference.

[Blackpony]

haha, I just now noticed that I saw you a few days ago in Denton where 380 & 288 intersect...I noticed the 10th anni rims and stared

Yes i would run the 5-30 in the higher mileage engines. Also run a motorcraft filter. I run motorcraft oil and filter in all my vehicles. Always comes out clean.

[sspstang]

How about 200k on a 1991 Miata running 5lbs of boost on a supercharger. Mostly Rotella t synthetic

Honestly it doesn't really matter what you use as long as you change on something that resembles a schedule and have good filtration both oil and air.


Sent from my iPhone

I agree with this post.

[Downs]

True.

Also, I love the "I have 150k miles on my engine so my oil must be the best" comments. Seriously, get back to us when you've gone another 100k.

How about 200k on a 1991 Miata running 5lbs of boost on a supercharger. Mostly Rotella t synthetic

Honestly it doesn't really matter what you use as long as you change on something that resembles a schedule and have good filtration both oil and air.


Sent from my iPhone

[sspstang]

That is what I am running. I still hold between half and 3/4 on the oil gauge. I have always changed the oil at 3k. I run the 820s motorcraft filter too. It is a good clean oil too, going in and draining out. My truck still has clear oil at any point, I can pull the stick and it will be clear.

[E_Low]

so run 5w30 motorcraft with the higher mileage?

[sspstang]

Motorcraft is great oil. I have used it since day one in my truck. I am at 180k miles, it still holds excellent OP, and no noises. You would think it only had 80k miles.

[SMEGMA STENCH]

Someone was talking about a 450K ranger on redline... can't remember where.

[CYAZ06]

Stick with Motorcraft.