I just wanted to share my impressions after using the HPL Engine Cleaner 30.
I have 4 2006-2007 Honda Odysseys with the J35A7 with VCM enabled.
Since these engines are prone to sludge, I have been doing solvent based engine flushes with each of the last 3 oil changes.
I've used 3 different brands of engine flush: LiquiMoly Proline engine flush, STP Concentrated engine cleaner, and BG EPR 109.
Oil drain after the solvent based engine flush comes out medium brown (same color if no flush was done).
It lead me to believe the engines are already clean inside, and the reason the oil came out clean looking during the oil change was that there was no sludge/varnish in the engine to clean.
I then tried 1 quart EC30 + 3.5 quarts of low priced full synthetic 5W-30 and ran it for 4,000 miles. The oil after about 3,000 miles was dark and gritty looking on the dipstick, and when it was drained at 4,000 miles, the oil looked very dark (almost black). This has never happened before in any of the 4 Odysseys, to have oil almost black in color to drain out.
My experience seems to indicate that solvent based engine flushes are limited in what they can do, and don't do very much.
But the HPL EC30 may have actually done some serious cleaning in places that the solvent based engine flushes had no effect on.
An economical way to really clean out your engine might be to use 1 quart HPL EC 30 + 3.5 quarts low priced synthetic with every oil change.
The Ester in the HP EC 30 could also act like a high mileage oil, swelling your oil seals to prevent leaks.
Would anyone know if there is some long term reason not to run 1 quart HPL EC 30 with every oil change (like damage to seals or abrasive or more engine wear)?
I have 4 2006-2007 Honda Odysseys with the J35A7 with VCM enabled.
Since these engines are prone to sludge, I have been doing solvent based engine flushes with each of the last 3 oil changes.
I've used 3 different brands of engine flush: LiquiMoly Proline engine flush, STP Concentrated engine cleaner, and BG EPR 109.
Oil drain after the solvent based engine flush comes out medium brown (same color if no flush was done).
It lead me to believe the engines are already clean inside, and the reason the oil came out clean looking during the oil change was that there was no sludge/varnish in the engine to clean.
I then tried 1 quart EC30 + 3.5 quarts of low priced full synthetic 5W-30 and ran it for 4,000 miles. The oil after about 3,000 miles was dark and gritty looking on the dipstick, and when it was drained at 4,000 miles, the oil looked very dark (almost black). This has never happened before in any of the 4 Odysseys, to have oil almost black in color to drain out.
My experience seems to indicate that solvent based engine flushes are limited in what they can do, and don't do very much.
But the HPL EC30 may have actually done some serious cleaning in places that the solvent based engine flushes had no effect on.
An economical way to really clean out your engine might be to use 1 quart HPL EC 30 + 3.5 quarts low priced synthetic with every oil change.
The Ester in the HP EC 30 could also act like a high mileage oil, swelling your oil seals to prevent leaks.
Would anyone know if there is some long term reason not to run 1 quart HPL EC 30 with every oil change (like damage to seals or abrasive or more engine wear)?