关于540 RAT（美国工程师，权威机油博客）
- 机械工程师（机械工程师显然是最合格的工程师，对于测试由化学工程师配制的机油，用于负荷下机械部件之间的磨损保护能力。）
- 美国专利持有人（为军用喷气式飞机设计机械装置）
- SAE会员（汽车工程师协会）
- ASME成员（美国机械工程师协会）
- 终身齿轮头，机械，高速汽车，改装赛车和发动机制造者。
以下内容节选自博客关于Renewable Lubricants机油的相关部分：
瑞安勃Bio-SynXtra机油5W30抗磨损性能优于许多顶级机油：Red line 5W30 (POE), 30 wt. Red Line Race Oil synthetic, Brad Penn, Penn Grade 1 Nitro 70 Racing Oil semi-synthetic, Joe Gibbs, 5W30 Maxima RS530 Synthetic Racing Oil,, Lucas Racing synthetic, 5W20 Royal Purple API SN synthetic, 10W30 Joe Gibbs XP3 NASCAR Racing Oil synthetic, Lubrication Engineers, Mag 1, FMX, European Formula, Motul 300V Ester Core 4T Racing Oil, synthetic, Valvoline MaxLife High Mileage, Valvoline VR1 Synthetic Racing Oil, 5W30 Pennzoil “Ultra” Platinum, Pure Plus 5W30 Amsoil Series 3000 Heavy Duty Diesel Oil synthetic, 10W40 Mobil 1 Racing 4T, four stroke Motorcycle oil, synthetic, 10W30 Bel-Ray, Friction Modified, Thumper Racing 4T, 4-Sroke Motorcycle, 5W30 Penrite 10 Tenths Racing 5 synthetic, 5W30 Mobil 1 High Mileage, API synthetic, 20W50 LAT Synthetic Racing Oil, 15W40 Amsoil Max-Duty Signature Series Synthetic Diesel Oil, 5W50 Mobil 1, API SN, synthetic, 10W30 Joe Gibbs HR4 Hotrod Oil synthetic, 15W40 RED LINE Diesel Oil synthetic, 5W30 Castrol Edge w/Syntec, API SN synthetic (formerly Castrol Syntec), 5W30 Schaeffer’s Supreme 9000, 5W30 Royal Purple API SN synthetic, 20W50 Kendall GT-1 High Performance with liquid titanium, 5W30 Mobil 1 Annual Protection, API SN, GM dexos 1 approved, ACEA A1/B1, synthetic, 5W30 Castrol GTX “ULTRACLEAN, API SN, 10W30 Renegade Pro Series Racing Oil, synthetic blend, 5W30 Motul 8100 X-clean, API SM, synthetic, 20W50 Mobil 1 V-Twin 4 Cycle Motorcycle Oil, API SJ synthetic, 5W30 Royal Purple XPR (Extreme Performance Racing) synthetic, 0W50 Mobil 1 Racing Oil, and many other products I thought you might find this interesting and may be able to use in the future.
磨损保护参考分级说明：
* 超过120,000 psi = FANTASTIC不可思议的磨损保护
* 105,000至120,000 psi =INCREDIBLE令人难以置信的磨损保护
* 90,000至105,000 psi =OUTSTANDING出色的磨损保护
* 75,000至90,000 psi =GOOD良好的磨损保护
* 60,000至75,000 psi = MODEST一般磨损保护
* 低于60,000 psi =UNDESIRABLE不可靠的磨损保护
psi值越高，磨损保护越好。机油之间的测试结果差异小于10％并不重要，并且该范围内的油可以被认为大致相当。
机油抗磨损性能排行
No.4： 5W30 Renewable Lubricants, Super High Performance Passenger Vehicle, Bio-SynXtra, motor oil = 130,436 psi
这种获得专利的生物基机油使用农业植物油基础油，可生物降解。它声称可以在更新的高输出涡轮增压和增压汽油发动机中提供最佳性能。它还声称已经配制了添加到该基础油中的最新添加剂包组件。它声称该配方通过了API SN所要求的测试。它声称具有卓越的抗磨损保护和高温稳定性，这在我的工程测试中都证明是正确的。此外，它还声称具有非常高的粘度指数值，这有助于防止燃料稀释问题。粘度指数值越高，加热时油的粘度减少越小。
zinc =待定
phos = 待定
moly = 待定
该油在2018年夏季进行了测试。
该油的psi值来自于在230℉的正常操作测试温度下进行的测试，属于FANTASTIC（不可思议）磨损防护类别中。
我还继续在275℉的更高温度下测试这种油。在该高温下，任何更热和更薄的油预计都会经历磨损保护能力的下降。这种油的能力下降了0.7％。即使在高温下，它也能产生129,486磅/平方英寸的压力，这仍然保留了FANTASTIC磨损防护类别中更热的油。
我还测试了这种油的热击穿点，即275℉.
这是我测试的第一种生物基机油。它的表现非常令人印象深刻。这些结果可能让很多人感到惊讶，因为这种油甚至不是由石油基础油制成的。所以看来，生物基机油可能会有一个非常光明的未来，如果配方很好的话。
而这种生物基油产生的测试数据，进一步支持了我所说的关于机油的“基础油”并不是那么关键，“添加剂包”至关重要。
NO.7. 5W30 Renewable Lubricants, HD Super High Performance, Bio-SynXtra motor oil = 125,250 psi
这种生物基机油使用农业植物油基础油。它还没有机油行业认证，但声称其配方符合柴油发动机的要求，后者配备了需要低灰分的后处理设备。它还声称配制用于高性能涡轮增压和增压“柴油和汽油”发动机，需要API SN / CF，CF-4，CG-4，CH-4，CI-4，CI-4 Plus，CJ-4和 ACEA E2-96，E5-02和E7-02。
zinc = 待定
phos = 待定
moly = 待定
这种油在2018年底进行了测试。
该油的psi值来自于在230℉的正常操作测试温度下进行的测试，将其置于FANTASTIC（不可思议）磨损防护类别中。
我还继续在275℉的更高温度下测试这种油。 在该高温下，任何更热和更薄的油预计都会经历磨损保护能力的下降。 这种油的能力下降了0.3％。 即使在高温下，它也能产生124,901磅/平方英寸的压力，这仍然保留了FANTASTIC磨损防护类别中更热的油。
我还测试了这种油的热击穿点， 245℉.
关于机油的粘度指数Viscosity Index (VI).
用于量化油对粘度随温度变化的抗性的物理性质称为粘度指数（VI），VI越高，油的粘度变化越大。
无论它的粘度等级如何，每一个机油在加热时会变稀，并且随着冷却而变稠。
多级机油粘度特性通常在40℃（104℉）冷值和100℃（212℉）热值下给出。
机油粘度以称为厘斯（cSt）的精确测量值给出，cSt值越高，油越稠。
ASTM D2270用于测试粘度指数值 Viscosity Index (VI) value.
ASTM D445用于测试粘度 cSt @ 40℃ 和cSt @ 100℃
SYNTHETIC PETROLEUM-BASED OILS合成油:
.5W30 Amsoil Signature Series
Viscosity Index = 162 / 59.7 cSt @ 104℉ / 10.3 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W30 Quaker State Ultimate Durability
Viscosity Index = 170 / 66.65 cSt @ 104℉ / 11.60 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W30 Valvoline Modern Engine Oil
Viscosity Index = 165 / 55.0 cSt @ 104℉ / 9.8 cSt @ 212℉
viscosity reduction of 82% between 104℉ and 212*
.5W30 Valvoline Advanced Full Synthetic
Viscosity Index = 158 / 60.1 cSt @ 104℉ / 10.2 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W30 Pennzoil Platinum
Viscosity Index = 170 / 53.9 cSt @ 104℉ / 9.8 cSt @ 212℉
viscosity reduction of 82% between 104℉ and 212*
.******
.5W20 Amsoil Signature Series
Viscosity Index = 153 / 50.6 cSt @ 104℉ / 8.8 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W20 Quaker State Ultimate Durability
Viscosity Index = 157 / 46.76 cSt @ 104℉ / 8.41 cSt @ 212℉
viscosity reduction of 82% between 104℉ and 212*
.5W20 Valvoline Modern Engine Oil
Viscosity Index = 165 / 49.1 cSt @ 104℉ / 9.0 cSt @ 212℉
viscosity reduction of 82% between 104℉ and 212*
.5W20 Valvoline Advanced Full Synthetic
Viscosity Index = 147 / 46.5 cSt @ 104℉ / 8.1 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W20 Pennzoil Platinum
Viscosity Index = 167 / 45.9 cSt @ 104℉ / 8.6 cSt @ 212℉
viscosity reduction of 81% between 104℉ and 212*
.******
.0W20 Amsoil Signature Series
Viscosity Index = 169 / 47.1 cSt @ 104℉ / 8.8 cSt @ 212℉
viscosity reduction of 81% between 104℉ and 212*
.0W20 Quaker State Ultimate Durability
Viscosity Index = 165 / 44.61 cSt @ 104℉ / 8.33 cSt @ 212℉
viscosity reduction of 81% between 104℉ and 212*
CONVENTIONAL PETROLEUM-BASED OILS传统油:
.5W30 Quaker State Advanced Durability
Viscosity Index = 158 / 63.4 cSt @ 104℉ / 10.6 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W30 Valvoline Daily Protection
Viscosity Index = 168 / 63.0 cSt @ 104℉ / 11.0 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W30 Pennzoil
Viscosity Index = 158 / 63.4 cSt @ 104℉ / 10.5 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
******
.5W20 Quaker State Advanced Durability
Viscosity Index = 150 / 49.2 cSt @ 104℉ / 8.5 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W20 Valvoline Daily Protection
Viscosity Index = 146 / 50.0 cSt @ 104℉ / 8.5 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
.5W20 Pennzoil
Viscosity Index = 150 / 49.6 cSt @ 104℉ / 8.5 cSt @ 212℉
viscosity reduction of 83% between 104℉ and 212*
BIO-BASED OILS植物基油:
5W30 Renewable Lubricants Bio-SynXtra
Viscosity Index = 177 / 49.0 cSt @ 104℉ / 11.0 cSt @ 212℉
viscosity reduction of 78% between 104℉ and 212*
.5W20 Renewable Lubricants Bio-SynXtra
Viscosity Index = 179 / 45.0 cSt @ 104℉ / 8.8 cSt @ 212℉
viscosity reduction of 80% between 104℉ and 212*
.*****
你希望看到一种油足够稀，在冷启动期间在油温最低的情况下油最粘时候可以流动良好，但同时，在高温工作温度下不要过稀。
机油粘度指数（VI）值越高，当油达到高温运行温度时，油应该越少。
5W30 synthetic oils合成油:
The highest VI = 170 and 82% was the least amount of cSt oil thickness drop seen from the oils above.
The lowest VI = 158 and 83% was the drop amount seen.
.5W20 synthetic oils合成油:
The highest VI = 167 and 81% was the drop amount seen.
The lowest VI = 147 and 83% was the drop amount seen.
.0W20 synthetic oils合成油:
The highest VI = 169 and 81% was the drop amount seen.
The lowest VI = 165 and 81% was the drop amount seen
.5W30 conventional oils传统油:
The highest VI = 168 and 83% was the drop amount seen.
The lowest VI = 158 and 83% was the drop amount seen.
.5W20 conventional oils传统油:
The highest VI = 150 and 83% was the drop amount seen.
The lowest VI = 146 and 83% was the drop amount seen.
注意：常规油使用“粘度改进剂”以防止在变热时过度稀释，在运行的发动机中提供可接受的性能，并且为它们的规格表产生可接受的VI值。 然而，随着里程累积在油上，粘度改进剂会发生故障。 因此，在这些粘度改进剂不再能够完成其工作之前，以合理的间隔更换常规油非常重要。
结论：
•让我们来看看“整体”，即每种粘度等级中哪种油是冷启动时的粘度最小的，无论它是什么类型的油。
. 5W30 Bio-based Renewable Lubricants Bio-SynXtra with a cold 49.0 cSt value
. 5W20 Bio-based Renewable Lubricants Bio-SynXtra with a cold 45.0 cSt value
. 0W20 synthetic Quaker State Ultimate Durability with a cold 44.61 cSt value
.让我们来看看“整体”，每种粘度等级中的哪种油能够做到最好的工作，不会太稀，换句话说，在最热的测试温度下是粘度最高的，这是我们希望看到的，不管是什么类型的油。
. 5W30 synthetic Quaker State Ultimate Durability with a hot 11.60 cSt value
. 5W20 synthetic Valvoline Modern Engine Oil with a hot 9.0 cSt value
. 0W20 synthetic Amsoil Signature Series with a hot 8.8 cSt value
.不幸的是，正如您在上面的冷和热结论值中所看到的，在冷热温度下，单一油不是最好的。
那么，即使它们在两个温度下都不是绝对最佳的，哪种油在“冷”和热两个温度下都能提供最佳的“总体”粘度？
.
•5W30 Renewable Lubricants Bio-SynXtra with a cold cSt value of 49.0 and a hot cSt value of 11.0, is the best 5W30 overall, in terms of viscosity changes, because it “IS” the best when cold, and nearly ties for the best when hot, among the oils looked at here.
. 5W30 Renewable Lubricants Bio-SynXtra低温粘度49.0，高温11.0，就粘度变化来说，总体上是最佳的5W30机油。
•5W20 Renewable Lubricants Bio-SynXtra with a cold cSt value of 45.0 and a hot cSt value of 8.8, is the best 5W20 overall, in terms of viscosity changes, because it “IS” the best when cold, and nearly ties for the best when hot, among the oils looked at here.
. 5W20 Renewable Lubricants Bio-SynXtra低温粘度45.0，高温8.8，就粘度变化来说，总体上是最佳的5W20机油。
. 在结束本文之前，让我们看看是否可以从所有这些数字中得到有价值的信息。
5W30 Renewable Lubricants Bio-SynXtra的粘度指数为177，冷cSt值为49.0，热cSt值为11.0，粘度下降仅为78％。
5W20 Renewable Lubricants Bio-SynXtra的粘度指数为179，冷cSt值为45.0，热cSt值为8.8，粘度下降仅为80％。
540 RAT
.540rat的排名上的神级添加剂，博主本人却不赞成使用
540rat上排名的前三位，都用了 Prolong Engine Treatment添加剂，大大提高了抗磨测试得分。但博主却说：
This Prolong Engine Treatment motor oil additive works amazingly well in all types of oils, at all ranking levels. It is the REAL DEAL in terms of improving wear protection. You just have to decide for yourself if it is worth the extra money for your own particular needs. For most people, it would be more cost effective to simply choose a highly ranked oil in the first place, and avoid using any additives at all. But, for heavily loaded race engines, flat tappet engines, and for flat tappet break-in, where the ultimate in wear protection is desired, it could be worth considering.
But, keep in mind that I only test an oil’s “Wear Protection Capability”. That provides the information that people usually care about most. However, that data is limited to ONLY wear protection capability, and does NOT provide any information as to how compatible overall this product’s chlorine may be with a given oil’s additive package. Chlorine and additive package incompatibility has a possible risk of creating damaging bearing corrosion problems. Contact Prolong’s maker for more information on compatibility to find out if it is safe to use in your application. The test data on Prolong is included here for informational purposes only. I do not endorse nor recommend its use.
And for the record, I have no affiliation what so ever, with any Oil Company or any Oil Additive Company. I simply post the results that come out of my independent and unbiased testing.
博客地址：https://540ratblog.wordpress.com/
（翻译仅供参考，以博客原文为准）