So lets check Vetts Manual since we know the stringray uses the same LT1
https://www.chevrolet.com/content/da...ers-manual.pdf
Quote:
Use only engine oil meeting the dexos1™ specification of the proper SAE viscosity grade. Look for the dexos1 approved logo for GM approved
engine oil. For track events or competitive driving, use Mobil 1® engine oil.
See Engine Oil 0 223
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Quote:
Use SAE 5W-30 viscosity grade engine oil.Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29 °C (−20 °F), an SAE 0W-30 oil may be
used. An oil of this viscosity grade Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9085364) - 2016 - crc - 6/5/15 228 Vehicle Care
will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, always select an oil of the correct specification. See “Specification” earlier in this section for more information.
For track events or competitive
driving, use Mobil 1® 15W-50 engine oil. An instrument cluster warning light will be illuminated at high oil
temperatures. See Driver Information Center (DIC) 0 114
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Quote:
If the vehicle is used for track events and competitive driving,
the engine may use more oil than it would with normal use. Low oil
levels can damage the engine. Check the oil level often and
maintain the proper level. See Engine Oil 0 223.
Caution
Not changing the engine oil to 15W-50 may cause engine damage. Engine oil must be changed to 15W-50 synthetic. See Capacities and Specifications
0 312.
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well that's different hah