ZDDP
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48626
Printed Date: December-02-2024 at 12:14pm
Topic: ZDDP
Posted By: Tim D
Subject: ZDDP
Date Posted: April-30-2020 at 2:27pm
Anybody try this brand before? Just changed the oil in my high performance V8 4Runner and put some in it. I think I might try it in the boat. ------------- Tim D |
Replies:
Posted By: Jonny Quest
Date Posted: April-30-2020 at 2:38pm
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Lucas products are high quality (in my experience). I've used the Lucas ZDDP adder shown in the photo above. Be cautious as one can add too much ZDDP. The 351W SBF with a flat tappet cam likes higher zinc/phos levels. I like to run 1,300 to 1,400 parts per million (PPM) of ZDDP. If the oil you use doesn't have enough ZDDP, the Lucas product works well to boost the levels. Negative Effects of ZDDP -- Generally, high levels of ZDDP result in volatile phosphorus being transferred from the combustion chamber to the catalytic converter. Phosphorus can negatively impact the catalytic reaction sites in the converter, making it less efficient in turning CO into CO2. JQ ------------- Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
Posted By: Tim D
Date Posted: April-30-2020 at 2:52pm
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In the boat, 4 1/2 qts of oil, would 16 oz substituted be too much? ------------- Tim D |
Posted By: Canuck-Surfer
Date Posted: April-30-2020 at 6:32pm
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I've decided to use Shell Rotella T4 in my newly rebuilt GT40 that goes in tomorrow. Its Zinc level is about 1200. Its what I can get easily and affordable here in Canada. (Royal Purple and Vavoline VR are hard to find and crazy expensive when you do). I was going to use some ZDDP additive, Canadian Tire (think Pep Boys sort of) has this lucas additive. How much should I add to boost from 1200 to the recommended 1400? ------------- 1996 Sport Nautique GT40 EFI |
Posted By: zwoobah
Date Posted: May-01-2020 at 3:29pm
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Lucas makes good stuff so it can't hurt. That Toyota 4.7 V8 has gone over one million miles in at least two trucks with normal oil so it's probably not needed. There's at least three of us here with 4th gen 4Runners - mine is a V6, still towing strong with 200k miles. ------------- 1968 Mustang 16 - 351W powered |