Reply to "351C lubrication system & lubricants"

Results and Conclusion:

#1 Conclusion - I am pretty proud of her.

Results

Valvoline SAE 30 at -6.2°C took 49.6 seconds on trial one. After five trials it averaged at 41 seconds. At room temperature SAE 30 averaged 5.8 seconds. When we heated it up to 75°C the first trial was 1.7 seconds. The five trials at hot averaged as 1.8 seconds. With Valvoline 5W 30 at -1.5°C the five cold trials averaged as 24.2 seconds. When we tested it at room temperature it averaged at 4.3 seconds. At 72°C the first trial was 2 seconds and the five trials at room temperature averaged at 1.8 seconds. When I used the used Valvoline 5W 30 at -3.7°C it averaged to 22.2 seconds. When I did it at room temperature I got 4.4 seconds as the average. The used 5W 30 averaged at 2.1 seconds at 75°C.


Conclusion

My hypothesis was proved true. I predicted that the 5W 30 would stay more consistent and the 5W 30 did. This happened because the viscometer fell at more consistent times in the 5W 30 oil then in any other oil. Factors that may have caused the outcome are that the was more constant with its viscosity. Also, the temperatures may have been lower or higher for the 5W 30. I could further test this project by testing different oil brands to determine which oil brand has the best 5W 30. Real world uses of this information say that if they live in a place where the climate changes a lot then they should use the 5W 30.