Bosch alternators can shrug that off but not the Japanese parts. The problem arises when every infrequent time the car is used the alternator needs to work flat out because the battery is half dead. They'll be OK if the battery is kept up and you use the car regularly so it shouldn't be a problem. The auto manufacturers wanted neither so they went with the small Japanese hand grenades. When the auto industry went to 100+ amp alternators the Bosch offering was huge and expensive. I am not ordinarily a huge fan of Bosch but they do make good alternators. From the stand point of durability not so much but that is normal for the Japanese alternators. DougĬlick to expand.From the stand point of output they already are. I just don't know what is more reliable and fits. I must say that an additional $75-$100 for a more reliable battery is better than an impaired vacation.
#Interstate mtp 48 h6 install
Interstate tried to install an upgraded Interstate AMG battery, closed cell, better temp tolerance etc., but it is slightly too tall for the angle brackets. So this is my second Interstate battery to fail in the 2-3 year time frame and I am thinking the engine is too hot for this type of battery. However, the ability of many retailers to cross reference this, in my experience, is questionable.
The reason for the post is this.the MTP-91 has been replaced by the MTP-48/H6, which should be commonly available at most Interstate retailers, including Firestone, Tires Plus and others.
The good news is, that after a 6.5 hr trip back home.not cutting the car off, a got a free battery under warranty. I recently had a battery failure, bad cell, with my 29 month old Interstate MTP-91 over Memorial Day weekend in my 550 and spent all day Friday riding around Ft Walton Beach unsuccessfully looking for a replacement.