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We bought this car used a couple of weeks ago. The service records show that the PO had used the FSS computer to trigger oil changes. Average was 13k miles OCI. Oil used was M1 0w40 and Mann Fleece filter. When I changed it, (and pulled this sample), the FSS was indicating 7700 miles to oil...

Got the Blackstone report back on this oil. Very impressive! Mercury Racing HP525 2005 Sonic 42SS Oil Mercruiser 25w40 Oil added none Hours on oil 21 Hours on unit 84 approx Date 8/25/05 Aluminum 6 5 Universal average is second number Chromium 2 2 Iron 10 63 Copper 71 19 (lingering wear-in of...

I posted the results of my UOA on Kendall in my 509. Let me know what you guys think... http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=002768

This is my first UOA, (hope I did everything right!) This engine is in my Thoroughbred offshore performance boat. It's a 509ci, Chevy/Mercruiser block, all forged internals, Merlin VR heads, Ultradyne 306/296 cam, Brodix intake, CMI headers. It's raw water cooled, (salt). Never dynoed, but...

You guys got me thinking all sorts of oil stuff now! My 1970 Donzi 18 is powered by an original Holman Moody 351 Windsor 290hp. It uses a factory original bypass instead of a circ pump, that's fed from a Jabsco crank mount water pump. Even though I use a thermostat, (tried three so far), the...

I have a question about oil filters, (I've searched this forum, and cannot find the answer). My application is somewhat specialized. My buddies and I all run 509 cubic inch (and larger) big block chevies in offshore-type performance boats. Some are carbed, some are injected. We run rpms of...

Apparently AZ is getting out of the Kendall line. I bought a couple of years worth! All oils including the Racing 50 and Nitro 70 is a buck!

Hi guys! What do you guys think about the Pennzoil Marine oils? I can't find a VOA on this site. Walmart sells this oil for a good price. http://www.pzlqs.com/Tech/Pdsheet/DomesticMarketing/EngineOils/pdf/PennzoilMarineMotorOil.PDF For comparison, here's Pennzoil's sheet for LongLife...

Hi guys! I asked this question in the "Boat Lube" section, but I think it belongs here. Our motors are much closer in spec to your racing motors. Here's the question: I run with a group of performance boaters on the Gulf Coast of Texas. All of our engines are based on BBC's, ranging in...

I run with a group of performance boaters on the Gulf Coast of Texas. All of our engines are based on BBC's, ranging in horsepower from 400 to over 600hp. Most of the guys run Kendall 40wt, and change every 20 hours. (One fella with BRAND NEW HP525EFi's just changed his oil for the first time...