02-23-2006, 06:15 AM
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Canadian Gashole
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Join Date: Mar 1999
Location: Quebec, Canada,
QC
Cobra Make, Engine: Johnex 427 S/C, 351W, 472 HP, 444 lbs. torque
Posts: 2,455
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Not Ranked
I found the email from STP yesterday but I couldn't get back into this site.
Here is their reply:
Reference Number: 4339163
Dear Mr. Maybury,
Thank you for contacting us about STP Oil Treatment. We always appreciate hearing from our consumers.
The main ingredient in our STP Oil Treatment is zincdialkyldithiophosphate or ZDDP for short. It is safe to use in all automotive engines. It is safe to use with both regular and synthetic oils. You may also use the product at a 10% treatment rate in gearboxes, manual transmissions, wet clutches and differentials.
Again, thank you for contacting us.
Sincerely,
Patti Copper
Consumer Response Representative
Consumer Services
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