Posted September 26, 20231 yr comment_657493 I always used VR1 in my race car with great results. When it was super hot out, I'd run 20W50, but I'd usually run 10W40. I am trying to buy some now for my street Z and I cannot find it anywhere. They still sell 10W30 and 20W50 on Amazon, but the 10W40 seems to be gone. Valvoline's website still shows 10W40 VR1, so it's not discontinued. When I lived in MI, my local Napa store always carried all viscosities of VR1, but in AZ, I can't find anybody that stocks it at all. Amazon only has 20W50 and 10W30. Here in AZ, the Fall/Winter temps range from lows of 30F to highs in the 80's, so I think 10W40 is still the best viscosity. Should I keep looking, or switch to something else that's easier to find? Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/ Share on other sites More sharing options...
September 26, 20231 yr comment_657505 It’s out there, saw it a couple of weeks ago somewhere. Let me backtrack a little. Will let you know. Hopefully others will chime in. Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657505 Share on other sites More sharing options...
September 27, 20231 yr comment_657507 Their shopping site doesn't show it. Seems likely the main site is out of date. If you blend 10W-30 with 20W-50 do you get 15W-40? Hmmm.... https://shop.valvolineglobal.com/collections/vr1-racing-motor-oil Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657507 Share on other sites More sharing options...
September 27, 20231 yr comment_657508 Fascinating, I checked Rockauto but they didn't have it. I googled it and checked the shopping link. Some 10w-30 and 20w-50 but no 10w-40. There was some straight SAE 40... Same thing at Jeg's and Summit racing... Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657508 Share on other sites More sharing options...
September 27, 20231 yr Author comment_657512 I've read that the VR1 10W30 doesn't have as much ZDDP as 10W40. I also read somewhere that they quit making 10W40. I think 20W50 is too heavy for our upcoming temps. I guess 10W30 it is... Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657512 Share on other sites More sharing options...
September 27, 20231 yr comment_657542 I would think mixing different weights of the same make oil would be okay, but not ideal, or convenient. Here's a handy ZDDP chart if searching for another. I can't believe what oil costs nowadays! https://www.speedwaymotors.com/the-toolbox/zddp-content-chart-high-zinc-oil-list-brand-breakdown/32479 Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657542 Share on other sites More sharing options...
October 1, 20231 yr comment_657660 Not sure if this is available where you are but I’ve used this often …https://www.opieoils.co.uk/p-205685-millers-oils-classic-pistoneeze-10w-40-engine-oil.aspxOther classic owners I know use this …https://www.westwayoils.co.uk/products/10w40-mineral-classic-oil-high-zinc-zddp Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657660 Share on other sites More sharing options...
October 7, 20231 yr comment_657886 I don't think you can go wrong with this stuff. Driven Racing Oil 03807 HR5 Conventional 10W40 Motor Oil, 12 Quarts (speedwaymotors.com) Link to comment https://www.classiczcars.com/forums/topic/68573-source-for-valvoline-vr1-10w40/#findComment-657886 Share on other sites More sharing options...
Create an account or sign in to comment