Required Oil Brands for Use with MWSC Flat Tappet Camshaft & Lifters

Posted by Cathy Stahl on

Wear protection reference categories are: 

  • *** Over 90,000 psi = OUTSTANDING protection 

  • *** 75,000 to 90,000 psi = GOOD protection 

  • *** 60,000 to 75,000 psi = MODEST protection 

  • *** Below 60,000 psi = UNDESIREABLE

The higher the psi number, the better the wear protection.

1. 10W30 Lucas Racing Only synthetic = 106,505 psi zinc = 2642 ppm phos = 3489 ppm ZDDP= 3000 ppm NOTE: This oil is suitable for short term racing use only, and is not suitable for street use.

2. 10W30 Valvoline NSL (Not Street Legal) Conventional Racing Oil = 103,846 psi zinc = 1669 ppm phos = 1518 ppm ZDDP = 1500 ppm NOTE: Due to its very low TBN value, this oil is only suitable for short term racing use, and is not suitable for street use.

3. 10W30 Valvoline VR1 Conventional Racing Oil (silver bottle) = 103,505 psi zinc = 1472 ppm phos = 1544 ppm ZDDP = 1500 ppm

4. 10W30 Valvoline VR1 Synthetic Racing Oil, API SL (black bottle) = 101,139 psi zinc = 1180 ppm phos = 1112 ppm ZDDP = 1100 ppm

5. 30 wt Red Line Race Oil synthetic = 96,470 psi zinc = 2207 ppm phos = 2052 ppm ZDDP = 2100 ppm NOTE: This oil is suitable for short term racing use only, and is not suitable for street use.

6. 10W30 Amsoil Z-Rod Oil synthetic = 95,360 psi zinc = 1431 ppm phos = 1441 ppm ZDDP = 1400 ppm

7. 10W30 Quaker State Defy, API SL semi-synthetic = 90,226 psi zinc = 1221 ppm phos = 955 ppm ZDDP = 1000 ppm

8. 10W30 Joe Gibbs HR4 Hotrod Oil synthetic = 86,270 psi zinc = 1247 ppm phos = 1137 ppm ZDDP = 1100 ppm

9. 15W40 RED LINE Diesel Oil synthetic, API CJ-4/CI-4 PLUS/CI-4/CF/CH-4/CF-4/SM/SL/SH/EO-O = 85,663 psi zinc = 1615 ppm phos = 1551 ppm ZDDP = 1500 ppm

10. 5W30 Lucas API SM synthetic = 76,584 psi zinc = 1134 ppm phos = 666 ppm ZDDP = 900 ppm

11. 5W50 Castrol Edge with Syntec API SN, synthetic, formerly Castrol Syntec, black bottle = 75,409 psi zinc = 1252 ppm phos = 1197 ppm ZDDP = 1200 ppm

12. 5W30 Royal Purple XPR (Extreme Performance Racing) synthetic = 74,860 psi zinc = 1421 ppm phos = 1338 ppm ZDDP = 1300 ppm

13. 5W40 MOBIL 1 TURBO DIESEL TRUCK synthetic, API CJ-4, CI-4 Plus, CI-4, CH-4 and ACEA E7 = 74,312 psi zinc = 1211 ppm phos = 1168 ppm ZDDP = 1100 ppm

14. 15W40 CHEVRON DELO 400LE Diesel Oil, conventional, API CJ-4, CI-4 Plus, CH-4, CF-4,CF/SM, = 73,520 psi zinc = 1519 ppm phos = 1139 ppm ZDDP = 1300 ppm

15. 15W40 MOBIL DELVAC 1300 SUPER Diesel Oil conventional, API CJ-4, CI-4 Plus, CI-4, CH-4/SM, SL = 73,300 psi zinc = 1297 ppm phos = 1944 ppm ZDDP = 1600 ppm

16. 15W40 Farm Rated Heavy Duty Performance Diesel, CI-4, CH-4, CG-4, CF/SL, SJ (conventional) = 73,176 psi zinc = 1325ppm phos = 1234 ppm ZDDP = 1200 ppm

17. 15W40 “NEW” SHELL ROTELLA T Diesel Oil conventional, API CJ-4, CI-4 Plus, CH-4, CF-4,CF/SM = 72,022 psi zinc = 1454 ppm phos = 1062 ppm ZDDP = 1200 ppm

18. 0W30 Brad Penn, Penn Grade 1 (semi-synthetic) = 71,377 psi zinc = 1621 ppm phos = 1437 ppm ZDDP = 1500 ppm

19. 15W40 “OLD” SHELL ROTELLA T Diesel Oil conventional, API CI-4 PLUS, CI-4, CH-4,CG-4,CF-4,CF,SL, SJ, SH = 71,214 psi zinc = 1171 ppm phos = 1186 ppm ZDDP = 1100 ppm

20. 10W30 Brad Penn, Penn Grade 1 (semi-synthetic) = 71,206 psi zinc = 1557 ppm phos = 1651 ppm ZDDP = 1600 ppm

21. 15W50 Mobil 1, API SN synthetic = 70,235 psi zinc = 1133 ppm phos = 1,168 ppm ZDDP = 1100 ppm

22. 30wt Edelbrock Break-In Oil conventional = 69,160 psi zinc = 1545 ppm phos = 1465 ppm ZDDP = 1500 ppm

23. 10W40 Edelbrock synthetic = 68,603 psi zinc = 1193 ppm phos = 1146 ppm ZDDP = 100 ppm


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