quote:That guy must not have looked at any Trisynthetic 5w30 UOAs then.
Originally posted by buster: Would Delvac 1 be ok to use in a 4cyl? I'm still searching for the oil I will be using this summer. If not, I'll run the 10w-30. I spoke with a Mobil tech today and he said he has never seen any Mobil oil thin out to a 20wt. Unbelievable......
quote:When it comes to oil consumption, one of the most important factors to look at is the Noack volatility numbers. Lower is better. You had good luck with Amsoil, so why not go back to it? Amsoil 5w30 would probably give you the least consumption of just about any oil you'll find. And it would be cheaper than Delvac, which would just hurt your MPG anyways. I think Delvac 1 is too thick for your Toyota.
Originally posted by buster: Patman, would you be able to explain the whole consumption issue with oils? I'm not as knowledgable many on here and I'm not quite understanding why and how certain oils thin out and have consumption problems. Example: 0w-40 has a 40wt spread but weighs in at 14.3cSt. This would obviously thin to maybe a 30wt. but would my engine use more of this then a 10w-30 @ 9.8 cSt?? I'd appreciate your help with this. I think I'm getting the cSt and VI improvers mixed up on this issue. The 0w-30 I'm running now is a 10.1 cSt and my car is drinking it.
Originally posted by buster: [qb] When it comes to oil consumption, one of the most important factors to look at is the Noack volatility numbers.
quote:You'll be fine-especially with the Delvac. I have the 5W-40 RotellaT Syn (Group III) in my Toyota 22RE. It runs fine even in the extremely cold weather here in Pa. this winter. Before I switched to the Rotella (for no reason) I used to mix 25% 15W-50 in with my 10W-30 Mobil 1.
Originally posted by buster: Ted, are you sure a 40wt. isn't too heavey for a 4cyl?