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i can't really trust more added detergent oil.. im giving a try with castrol 10w30 this time.

i've heard high mileage oil have some kind of addictive. so this, i'm not buying

let's say my oil pressure gauge indicates 30 psi when normal driving on the road. It is the best oil for my car if the OP stays around 30 psi when competing? castrol 0w30 and mobil 1 0w40 dropped OP significantly when drifting.

^^ bump for help. mobil 1 15w50 for street/drift use? i tried castrol 10w40 and it held relatively high oil pressure when drifting at a track. But this oil eats more oil than other brand/weight. So now i'm lurking for something else that has 40. I need something that i can find at autozone...

Originally Posted By: A_Harman It is on the product data sheet that I downloaded from their website. The HM data sheet is dated November, 2010. The TDT data sheet is dated September 2010. Flash point is the temperature at which the vapors from the heated oil will combust. Flash point is used as...

Originally Posted By: A_Harman The HTHS of HM 10w40 is 4.06, while for TDT 5w40, it is 3.8. This means higher oil film thickness in your bearings. The Flash point of TDT is 215C, and for HM 10w40, it is 240C. Because of the lower viscosity spread, HM 10w40 would be slightly more shear...

We all want insurances. that's why i added a high capacity oil pan lol. now i put 6 qts instead of 5. i may add oil cooler which i'll end up with around 6.5 qts every oil change. I'm trying to get as much insurance as possible because i autox and drift.

Originally Posted By: A_Harman My experience so far with M1 TDT 5w40 in my truck has been high oil consumption, about a quart every 1500 miles. This is much higher consumption than I had with VPB Classic. My experience with M1 5w30 HM in my Camaro was very low oil consumption, only 1/2-quart in...

Originally Posted By: A_Harman 40-weight oils are thicker than 30-weight oils. That's guaranteed by the SAE J300 specification. You don't need to do Used Oil Analysis to find that out. Just look at the oil spec sheets. My recommendation for a 40-weight for your VQ35DE would be Mobil 1 High...

Originally Posted By: d00df00d Originally Posted By: 350zriot so basically you don't know which oil is the best (disregarding whether true synthetic, synthetic or conventional) unless your get the UOA test done? UOA test recommends you to use same engine oil for at least two interval before...

so basically you don't know which oil is the best (disregarding whether true synthetic, synthetic or conventional) unless your get the UOA test done? UOA test recommends you to use same engine oil for at least two interval before getting it done. Is there a way to find out if, let's say, 5w30...

I have been wondering, is there a big difference between normal synthetic and true synthetic? I only know that Mobile 1 0w40 and Castrol 0w30 are the true synthetic ones. Is this all for brands that make true synthetic? i want engine oil that has thick 40 weight rather than light 40 weight like...

i think the standard analysis for $25 is good for me. http://www.blackstone-labs.com/standard-analysis.php what test should i be running for oil filter?

I would like to get UOA done on my castrol engine oil and oil filter. Where do i need to send these?

I'll be daily driving and drifting once in awhile in my Z. So i want something thicker than 5w30 because i don't engine oil becomming water when drifting. I'm running castrol 0w30 but i'm having ticking sound in my engine which ididn't have previously. So i'm trying to figure out what oil to get...

I'm thinking of getting UOA done on my castrol 0w30 on next oil change. How do i get this done?

Originally Posted By: Doug Hillary Hi, 350zriot - Welcome to BITOG Please don't assume that UOAs as a comparative medium between various lubricants will produce any more meaningful data than the actual condition of the lubricant at that point. This may be helpful in determing OCIs and may...

Originally Posted By: dparm Mobil 1 0w40 contains higher amounts of PAO than the other varieties. It's one formula they haven't changed over the years. Honestly, who cares if it's "true" synthetic. It's a great oil. The higher amounts of PAO, the better? I don't know what PAO is lol

Mobil 1 0W40 and 15W50 AFAIK are group IV/V based oils. I`ll be changing mine soon and am going with the M1 15W50. I`ll do a UOA on the current RP fill (ordered my Blackstone kit yesterday),then I`ll do a UOA on the M1 and see which one comes out better. You can also try RP 0W40,5W40,10W40,or...