Jeff G 78 Posted September 26, 2023 Share #1 Posted September 26, 2023 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 Share on other sites More sharing options...
Yarb Posted September 26, 2023 Share #2 Posted September 26, 2023 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 Share on other sites More sharing options...
Zed Head Posted September 27, 2023 Share #3 Posted September 27, 2023 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 Seems likely the main site is out of date.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 1 1 1 Link to comment Share on other sites More sharing options...
Patcon Posted September 27, 2023 Share #4 Posted September 27, 2023 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 Share on other sites More sharing options...
Jeff G 78 Posted September 27, 2023 Author Share #5 Posted September 27, 2023 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... 2 Link to comment Share on other sites More sharing options...
KenFirch Posted September 27, 2023 Share #6 Posted September 27, 2023 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 2 1 Link to comment Share on other sites More sharing options...
AK260 Posted October 1, 2023 Share #7 Posted October 1, 2023 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 Share on other sites More sharing options...
w3wilkes Posted October 7, 2023 Share #8 Posted October 7, 2023 I don't think you can go wrong with this stuff. Driven Racing Oil 03807 HR5 Conventional 10W40 Motor Oil, 12 Quarts (speedwaymotors.com) 2 Link to comment Share on other sites More sharing options...
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