ValvTect vs Standard gas

[ishoot308]

Originally Posted by Dave R

The additives offer no benefit if you are routinely burning through gas, adding fresh gas to the tank

I disagree...Ethanol, which is a form of alcohol, is a wonderful de-greaser. Ethanol robs your cylinder walls of oil lubrication particularly at startup. Quality stabilizers such as marine Stabil offer corrosion protection and lubrication to offset some of this degreasing that ethanol displaces.

Dan

[thinkxingu]

Originally Posted by ishoot308

I disagree...Ethanol, which is a form alcohol, is a wonderful de-greaser. Ethanol robs your cylinder walls of oil lubrication particularly at startup. Quality stabilizers such as marine Stabil offer corrosion protection and lubrication to offset some of this degreasing that ethanol displaces.

Dan

Ethanol also damages gaskets and fuel lines.

Sent from my XT1528 using Tapatalk

[Dave R]

Originally Posted by ishoot308

I disagree...Ethanol, which is a form of alcohol, is a wonderful de-greaser. Ethanol robs your cylinder walls of oil lubrication particularly at startup. Quality stabilizers such as marine Stabil offer corrosion protection and lubrication to offset some of this degreasing that ethanol displaces.

Dan

If this was really a problem, why do car engines last so long on plain old E10? I can't imagine many people are adding ValvTect every time they fill up. I certainly don't witness it at gas stations.

My commuter car has 192k miles, runs perfectly, and has never seen a drop of any gasoline additive. I'd estimate it has at least 4800 hours on it (assuming a 40 MPH average speed over the life of the car).

I would think the cold Winter start-ups the car has to endure would exacerbate the issue compared to the typical warm temperature a Winnipesaukee boat is going to enjoy at start up. My boat engine is probably already at least 65 degrees when I first start it up most days. It's never been started below 32 degrees. Yet, even though the car gets most of it's starts in cold weather (I ride a motorcycle when weather permits) it still works fine.

[ishoot308]

Originally Posted by Dave R

If this was really a problem, why do car engines last so long on plain old E10? I can't imagine many people are adding ValvTect every time they fill up. I certainly don't witness it at gas stations.

My commuter car has 192k miles, runs perfectly, and has never seen a drop of any gasoline additive. I'd estimate it has at least 4800 hours on it (assuming a 40 MPH average speed over the life of the car).

I would think the cold Winter start-ups the car has to endure would exacerbate the issue compared to the typical warm temperature a Winnipesaukee boat is going to enjoy at start up. My boat engine is probably already at least 65 degrees when I first start it up most days. It's never been started below 32 degrees. Yet, even though the car gets most of it's starts in cold weather (I ride a motorcycle when weather permits) it still works fine.

Mainly the reason cars are less affected is because they are used daily or at least a heck of a lot more than most boats where ethanol corrosion becomes an issue. This is why boats, snowmobiles, ATV's and any combustion engine that either gets stored or not run daily, ethanol corrosion becomes a real issue. The longer an engine sits that has used ethanol laced fuel the worse the problem becomes. The problem is not running the engine with ethanol the problem is when the engine is not running or stored after ethanol....

Dan

[DesertDweller]

Originally Posted by ishoot308

Mainly the reason cars are less affected is because they are used daily or at least a heck of a lot more than most boats where ethanol corrosion becomes a real issue. This is why boats, snowmobiles, ATV's and any combustion engine that either gets stored or not run daily, ethanol corrosion becomes a real issue. The longer an engine sits that has used ethanol laced fuel the worse the problem becomes. The problem is not running the engine with ethanol the problem is when the engine is not running or stored after ethanol....

Dan

Couldn't agree more. I have read where gasoline phase separation can happen in less than a month. Maybe that's just marketing materials being put out by the makers of these additives, but for me, I would rather spend a couple of extra bucks getting treated gas and/or buying the stabilizers than risking damage to a multiple thousand dollar motor hanging off the back of my boat.

[Dave R]

Originally Posted by DesertDweller

Couldn't agree more. I have read where gasoline phase separation can happen in less than a month. Maybe that's just marketing materials being put out by the makers of these additives, but for me, I would rather spend a couple of extra bucks getting treated gas and/or buying the stabilizers than risking damage to a multiple thousand dollar motor hanging off the back of my boat.

Phase separation occurs because there is too much water in the fuel, it's not due to time. Additives are not the proper solution to that, you need to keep the water out.