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 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, and went with Quicksilver 25W40.) Here's the question: I switched my 600hp 509 to Kendall GT1 20W50 based on Mercruisers recommendation to run this oil in their HP1050sc's (at 100k each!!). How does this oil compare to Quicksilver 25W40, and is there another quality dino oil we should be considering? None of us have ever had an oil related issue, and the general consensus among our group is that synthetics are not cost effective for 20 hour oil changes. We use around 80 quarts per season... What about Kendall 50wt Racing oil?
Here's a link to the original thread: Thread
Here's a Mercruiser VOA: Mercruiser VOA
And a link to Kendall's web page: Kendall
Most of us change oil after 20 hours, (10 if we ran a Poker Run!)
Thanks!
Jim
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, and went with Quicksilver 25W40.) Here's the question: I switched my 600hp 509 to Kendall GT1 20W50 based on Mercruisers recommendation to run this oil in their HP1050sc's (at 100k each!!). How does this oil compare to Quicksilver 25W40, and is there another quality dino oil we should be considering? None of us have ever had an oil related issue, and the general consensus among our group is that synthetics are not cost effective for 20 hour oil changes. We use around 80 quarts per season... What about Kendall 50wt Racing oil?
Here's a link to the original thread: Thread
Here's a Mercruiser VOA: Mercruiser VOA
And a link to Kendall's web page: Kendall
Most of us change oil after 20 hours, (10 if we ran a Poker Run!)
Thanks!
Jim