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Oil ZDDP Rotella gas truck [message #360568] Sun, 06 December 2020 10:04 Go to previous message
Tilerpep is currently offline  Tilerpep   United States
Messages: 404
Registered: June 2013
Location: Raleigh, NC
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Senior Member
My questions are
1. does synthetic take away the need for ZDDP
2. does this oil have the ZDDP independent of answer to #1


Rotella diesel engine oil has been recommended for a number of years because of the ZDDP being higher than others. I mostly used T4, than found some synthetic T6 on sale - the T6 did quiet the motor the last year before disassembly which found bad bearings (from poor quality PO rebuild, not oil).

Here is a Rotella 5w-30 full synthetic gas truck oil - on sale 5 quarts for $15.

https://www.homedepot.com/p/160-oz-ROTELLA-for-GAS-TRUCK-5W30-550050319/309170386?irgwc=1&cm_mmc=afl-ir-1378631-483420-&clickid=ROlVG9SJdxyORV 0wUx0Mo38qUkE1QTzBrUQdzg0

I could not find the numbers, if I did, I would still not know what is needed.

TIA

1975 Glenbrook, 1978 Royale rear bath Raleigh, NC

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