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View Full Version : Can I switch to Mobil 1 yet??


gr8smiles
06-16-2006, 01:37 AM
I have a 2005 X-Star with the MCX engine. I bought it as a demo with 20 hours on it. The dealer changed the oil then. I changed the oil at 70 hours. The dealer changed it again at 119 when they winterized it . So far this year, I am up to 150 hours. Can I switch to Mobil 1 15-40 now? Or should I wait til the end of the summer. I will be pulling her out tomorrow to switch props and could change it then. That would also put me on the 150-200-250-300 schedule. I am pretty sure that I want to go with Mobil 1, just a matter of timing. Thanks

Hoosier Bob
06-16-2006, 01:41 AM
You should get a few replies on this one! As far as I know a ton of MC engines are delivered with M1 in the pan! In the ages you would wait until break in was complete but as far as I know if it is what you prefer it is what you should run. Mine was delivered with M1 (1993) and warranty was extended due to this. Have fun and many should post. :D

Tom023
06-16-2006, 02:59 AM
My 2001 owners manual (Indmar) says wait until 100 hours before going to a synthetic, so I did. I noticed the oil pressure dropped almost to zero when comming off the throttle with the synthetic, so I switched back to dino oil. Now the pressure stays up there where it should. I know BigMac and some others who are knowledgeable about oils may tell you there is no benefit to synthetics in a boat.

BrianM
06-16-2006, 09:13 AM
Save your money for gas and keep running dino oil with 50 hour change interval. I fail to see the benefits of synthetics in our application. Others will disagree but I have yet to see any good evidence saying synthetic is worth 3-4 times the price per change.

Workin' 4 Toys
06-16-2006, 11:53 AM
I like Amsoil....but if it's a little hard to get, Mobil should do the trick.
If nothing else, piece of mind.:D
Go with your gut, there is no "proof" either way which is better, but the questions stands, do you get what you pay for....I can only hope. If you change to syn. and the motor locks up at 3000 hours... Was it the oils fault? What "if" you used Dino. oil, would it have made it to 3100? You may never know.



(For the record, my boat got whatever oil the Mastercraft dealer put in it..:o)

gr8smiles
06-16-2006, 09:16 PM
Changed it today. It only had 30 hours since the last change, but it was pretty dirty. I went with the Penzoil since that is what I had onhand. I may go for some synthetic at the next change which will be 200 hours.

Thanks

bcampbe7
06-16-2006, 09:22 PM
Changed it today. It only had 30 hours since the last change, but it was pretty dirty. I went with the Penzoil since that is what I had onhand. I may go for some synthetic at the next change which will be 200 hours.

Thanks

Are you waiting 170 hours to change the oil? That seems like a long time.

Hoosier Bob
06-16-2006, 09:31 PM
I think you need more info Beau. (X+30) + A = 200! My guess is A = 50 (regular oil chamge frequency) so that would make X 120 hours! ;)
Remember X represents the last oil change!Are you waiting 170 hours to change the oil? That seems like a long time.

erkoehler
06-16-2006, 09:37 PM
Are you waiting 170 hours to change the oil? That seems like a long time.


I think he is at 170 and is waiting till 200......

Hoosier Bob
06-16-2006, 09:44 PM
Erk did you not read the above post? Simple math son! Should I change? How about now? :toast: I think he is at 170 and is waiting till 200......

erkoehler
06-16-2006, 09:45 PM
Erk did you not read the above post? Simple math son! Should I change? How about now? :toast:


Sorry, didn't see that post...would you like me to edit mine?

Footin
06-16-2006, 09:49 PM
I run Mobil1 in my 94, I stick to the 50 hour + or - oil change (once a year). As far as the added expense, I watch for it on sale and usually end up paying about 3.99 quart for it so the added expense is about 10 bucks a year. Cheap insurance in my opinion.

I also run Mobil1 trans fluid in the velvet drive.

gr8smiles
06-16-2006, 10:56 PM
Whoa guys....

Bought new 2005 X-Star last June...it had 20 hours...was the boat show boat and demo

They changed oil at 20
I changed oil at 70
Dealer winterized and changed at 119
I changed today at 150
Next change will be 200....now I am on the every 50 hours cycle...makes it easier to keep up with :D

I also put two coats of wax on her today, changed props, put in 3 new ballast impellors, and did the oil...I was pooped...then I 'Sky Skied' for an hour....

Hoosier Bob
06-16-2006, 11:00 PM
You say 119 but if you read all previous posts you will see that I had calculated 120! Are you saing that you misinformed me? :confused: Once again the formula works!!!! ;) Whoa guys....

Bought new 2005 X-Star last June...it had 20 hours...was the boat show boat and demo

They changed oil at 20
I changed oil at 70
Dealer winterized and changed at 119
I changed today at 150
Next change will be 200....now I am on the every 50 hours cycle...makes it easier to keep up with :D

I also put two coats of wax on her today, changed props, put in 3 new ballast impellors, and did the oil...I was pooped...then I 'Sky Skied' for an hour....

Workin' 4 Toys
06-19-2006, 11:26 AM
You say 119 but if you read all previous posts you will see that I had calculated 120! Are you saing that you misinformed me? :confused: Once again the formula works!!!! ;)
Doesn't matter, he is going to synthetic at 200 hours, all your calculations will be flushed down the toilet...........

bret
06-21-2006, 09:30 PM
I race old Porsches from time to time and not long after the Exxon Mobil merger, something changed in Mobil 1. Don't know what they did to muck up the formula but lots of cars - Vettes, Bimmers, Stangs, Porsches - all started complaining at race weekends about seals leaking and pressure drops. Most of the die hard synthetic fans that I know went to Amsoil or Redline. Most of the others, including myself, went with Valvoline 20/50 racing dino oil. All of our problems went away on the P-car, including my street car so that's what the boat drinks now too. I had previously only used Castrol 20/50. I change it every 50-60 hours, as this usually completes my summer.

Hoosier Bob
06-21-2006, 10:08 PM
I had used Castrol 20/50 for years until switching within the last 4-5 to M1. I had heard of the seal issues but often found it was late switch engines that had the problem handling the "smaller molecules" than engines born on synthetic. Synthetic in any form supposedly occupies more space due to its ability to penetrate closer tolerance areas. That could cause the issues you are experiencing. So far my motorcycles that are ridden very hard love it. The Goldwingers Group swears by it. Those Wings are getting 100k-200k+miles on a motorcycle! Keep me informed as I do not want everything I own including my lawnmower to s-a-brick!

Workin' 4 Toys
06-22-2006, 12:07 AM
Since I switched over to Amsoil, I have even less problems than I didn't have before....:D

Hoosier Bob
06-22-2006, 12:38 AM
Tommy likey! :D Since I switched over to Amsoil, I have even less problems than I didn't have before....:D