I should be able to knock out the test on Sunday. I will post results then hopefully.

Part of why I’m doing the test is because it seems to be burning oil. The truck does leak, it does accumulate some oil around the oil pan, but no leaks on the ground. And it seems to be using oil.

The heads were both remanufactured before I bought the truck. The receipt just just “remanufactured cylinder heads” so I don’t know exactly what machine work was performed.

Is it possible/ likely the truck is using oil because the heads are still being broken in? They have about 3,500 miles on them.

currently running 10/40 conventional. Tried a different viscosity after running Rotella 15/40.

any thoughts?

 

@arains44 Not likely unless the valve seals are leaking a bit which is possible, I had a bit of usage after I did my head gaskets, but I had a few leaks too seems to have settled out. Running 10/40 synthetic

 

Gotcha.

I’m going to do the oil pressure test for good measure. It put 300 miles on it today so it’s obviously running okay. I also need to measure exactly how much it’s using as well.

Do you think conventional vs synthetic makes any difference with regard to burning oil?

 

the weight of the oil does. I used 15w40

 

@redwhitekat absolutely.

I daily drove a 1988 Porsche 944 Turbo with 170k miles on it for a few years. It burned oil when I forget got it. Eventually switched to a Liqui Moli oil that was 10/60 I think? Something really thick... Once I ran that stuff it stopped drinking oil entirely.

Im definitley going back to either Rotella 15/40 or Valvoline VR1 20/50.

A good friend of mine works for Valvoline and I’ve learned a lot about their oil lab and testing procedures. Gives me confidence in their products.

I did not intend for this to turn into another Oil Viscosity thread, but from what I’ve read Rover V8’s are not known for burning oil.

Oil pressure test and a viscosity change coming right up.

Any suggestions on Rotella vs VR1?

 

[QUOTE=arains44;753984]@redwhitekat absolutely.

I daily drove a 1988 Porsche 944 Turbo with 170k miles on it for a few years. It burned oil when I forget got it. Eventually switched to a Liqui Moli oil that was 10/60 I think? Something really thick... Once I ran that stuff it stopped drinking oil entirely.

Im definitley going back to either Rotella 15/40 or Valvoline VR1 20/50.

A good friend of mine works for Valvoline and I’ve learned a lot about their oil lab and testing procedures. Gives me confidence in their products.

I did not intend for this to turn into another Oil Viscosity thread, but from what I’ve read Rover V8’s are not known for burning oil.

Oil pressure test and a viscosity change coming right up.

Any suggestions on Rotella vs VR1?[/QUOTE


I use rottela on everything I owe. Subaru’s Land Rover and lawnmower

 

@redwhitekat absolutely.

I daily drove a 1988 Porsche 944 Turbo with 170k miles on it for a few years. It burned oil when I forget got it. Eventually switched to a Liqui Moli oil that was 10/60 I think? Something really thick... Once I ran that stuff it stopped drinking oil entirely.

Im definitley going back to either Rotella 15/40 or Valvoline VR1 20/50.

A good friend of mine works for Valvoline and I’ve learned a lot about their oil lab and testing procedures. Gives me confidence in their products.

I did not intend for this to turn into another Oil Viscosity thread, but from what I’ve read Rover V8’s are not known for burning oil.

Oil pressure test and a viscosity change coming right up.

Any suggestions on Rotella vs VR1?

 

Use the Rotella Diesel, more detergent and zinc.

 

From what I’ve read, VR1 has more ZDDP content than Rotella.

Zddp is 1300-1400ppm

Rotella claims 1100-1200ppm

Are there any other detergents in Rotella I should be aware of?

Does anyone have an opinion on 15/40vs 20/50?

Last question on the topic. Since I have a buddy with Valvoline and my “day job” is in motorsports I have a bunch of 20/50 VR1 synthetic I can use for 3-4 free oil changes.

From what I’ve read many folks are against synthetic in these engines. I understand they don’t require Synthetic, but has anyone had a bad experience with synthetic oils?

 

Sorry to change the focus of the conversation here. VR1 Conventional seems to be almost as popular as Rotella but for some reason Rotella seems to be the most popular choice on this forum.

I’ll post oil pressure results when I have them. Sorry to de-rail the conversion 😅