New Question for 4.3L XJ

[pvt.tadpolxj]

Hey 4.3 You mentioned to me how that you have used Vavoline VR1 I am wondering can I find this oil in 10w30. and if it is available in this wieght I was thinking about using it as a break-in oil. I found some imfo on the internet that the VR1 oil's have a very high amount of the Zinc& Phosphorus that these flat tappet valve train's must have for break-in.

[4.3LXJ]

I haven't ever seen it in 10W30. I have seen 30W, 40W, 50W, 60W and 20W50. This is a racing oil and will probably only be in the heavier weights because as horsepower goes up in an engine, so does the requirement for heavier oils.

[pvt.tadpolxj]

Thank's Jeeper.I did find out more on the Valvoline Oil's and they do have the 10w30 in the VR1. I'm thinking about using it as a break-in oil. The Zinc-phosphorus level in this is 14.5 .

[pvt.tadpolxj]

Thank's again 4.3L XJ I got a call today from a Valvoline rep. and he recommended using one of the three VR1 oil's for break-in. So when that time come's I have my hope's up.